I actually bought this unit from Crutchfield because at the time, both, Amazon & Crutchfield were selling them for the same price- but Crutchfield includes free installation gear. The only real reason why I was even in the market for a new stereo was because some lowlife broke into my garage and stole my old Sony Radio with bluetooth.
Carrying around a CD this days seem rather antiquated, unless you're an absolute audiophile. For those that are not, in comes this stereo that pretty much lets you do it all- short of being able to watch videos on the screen. It has 4 USB ports which are intended to be used for the provided GPS antenna, your choice of USB broadband dongle (which is intended to be used with the USB extension cable) and finally you have one spare USB port for you to connect your preferred USB device (be warned, you will need to gain access to the rear of the stereo if you do not buy an additional USB extension cable. Also, from some brief web browsing, I'm given the impression that you can actually use a USB hub on this stereo unit, which would further expand your options. In addition to this you also have an additional SD card slot to be used for even further onboard music space.
Installation is pretty straight forward for my car... obviously YMMV. But do note that other than the standard installation of this stereo, you will be required to run & hide the cables for the GPS antenna (which is supposed to be mounted on your dash) and for the microphone as well (which is supposed to be installed near your rearview mirror or on your visor- I opted for the visor). Also, parrot made this unit with the intention of easing installation for those whose car's have ISO stereo harnesses. Otherwise, you will need to buy a VW ISO harness to connect to the unit's harness or do as I did and cut the ISO connector of and wire the unit as you would any other stereo.
Before purchasing this unit, I was actually heavily leaning towards the Kenwood KIV-BT901 since it had many of the same features this unit has and then some (ie. video, sms on screen, etc)- for around the same price. Unfortunately, it turned out to not be a good fit for me since it was lacking a removable face plate for security.
The next runner up was the Pioneer MVH-8200, again similar features to this unit, plus video- and a partially removable faceplate. Unfortunately, I wasn't too fond of the user interface, and the USB and Line inputs were located at the front of the unit (which ends up cluttering it up with cables and the entire look overall). Furthermore, it was also lacking one feature that I really liked, and wanted to keep from the Sony unit that was stolen, was the Bluetooth audio streaming capability. As I understand it, not many stereos today support this feature, save for several of the Sony headunits.
Undoubtedly, I was constantly being recommended to Sony's line for this Bluetooth audio streaming feature. Although this would be a good choice for many given the features and price point, it just wasn't doing it for me. I'm not a fan of their iPod interface and their units have more lights than those dressed up semi-trucks that you see on the highway.
With all of that being said, and to summarize, there are a few key features that made me pick this stereo over your more common brands (Pioneer, Alpine, Kenwood, Sony, etc):
Not Flashy - essentially many of the stereos that I saw had more lights than a UFO and the styling completely seemed to clash with my dash (I can't really think of any dash style that these UFO stereos would even look good in). This unit is very simplistic with a very tolerable white glow to it and all of the audio source inputs are nicely tucked away behind the unit or behind the faceplate in the case of the SD card.
Security - This unit, much like the Pioneer unit that I mentioned above, both have a "half" faceplate that can be removed, which leaves only the screen behind on the unit itself. A sufficient deterrent for my needs considering I now actively set my alarm, regardless of where I park my car. One nice thing about this "half" faceplate is that it's less cumbersome to carry around and store away in your book bag or even your jacket pocket.
Audio inputs - You essentially have every source imaginable for this unit... minus a cd-slot. You have the option of USB dongles, SD Card, iPod, line-in, Bluetooth audio streaming and/or internet music with the use of broadband USB dongle.
iPod interface - it's not terrible, but really (at this point) not that much better than the Sony interface that I had before. One really sweet feature is that you can search for songs by artists or albums, simply by pressing a button and saying either. It would be nice if you were able to search for songs with this feature too. It works well the majority of time, but it's still kind of new to me, so there may be some user error here.
The android aspect of this unit is decent idea, particularly since this allows you to update the stereo as necessary and I'm sure that if you're nifty at writing out code or whatever you do to write programs for android devices, the possibilities could be that much greater.
Unfortunately, just with any product these days, it has its downsides.
When I first placed my order, I received my receiver promptly and installed it flawlessly. The only problem was the unit itself. It would restart randomly, the unit would get extremely hot, it would freeze, Bluetooth connectivity would be sketchy, plus a bunch of other minor annoyances. Fortunately, I had a new unit sent to me at no charge that seems to be a much better unit.
Faulty unit aside, there are some things that more annoyances than anything. The first would be the Subwoofer control, which will automatically activate even though it's displaying as being inactive in the settings. Which forces me to go into the settings and activate the subwoofer and deactivate for it to remain turned. This seems to only really happen after I remove the faceplate, otherwise if I pull up to a gas station and shut off the car, and leave the faceplate on, it will retain it's settings and function as indicated.
The ipod has on occasion lost track of where it was... but I haven't exactly figured out a pattern to this yet. It may be due to it being a 5th gen iPod video classic that I haven't updated in quite some time.
As for internet connectivity, I wish I could comment on this, but I have not opted to purchase a plan and a USB broadband dongle. I thought that maybe I could find a way around this and just tether my phone to this unit (Evo 4G), but that is not the case at the moment. Maybe a future update will enable this feature... so until then this feature will remain a con in my book.
Although I like the simplicity and elegance that this unit portrays... they could have added some rubber grip to the volume knob. It's rather difficult trying to turn the knob with gloves on. The knob and much of the face seems to be made of plastic (duh!), but I constantly fear scratching it (even with the included soft carrying case), since the volume knob for example is a clear plastic circle. I may also end up buying a screen protector to cut to size for the actual screen, just to ease my paranoia. Another complaint of mine is the buttons on this unit, since they are all essentially flush with their surroundings, it forces you to glance at the stereo before pressing a button... and there is really no way around this since as far as I know, no remote control is offered for this unit. Lastly, the implementation of a touch screen would have probably made it easier to navigate this unit. Luckily, it's not terribly difficult to navigate the unit with the knob.
For me though, this unit meets my basic needs. If, and when, more apps and internet connectivity become reality for me, it will make things just that much better for me.