I love this stereo, before this all I had was the stock cassette player in my car. So this was a giant step up for me in car stereo world. I'm not totally old school nor am I a car audio geek, but this was a breeze to pair with my Galaxy S4 and links up to Pandora and Bluetooth audio nicely. I've also used the USB and aux ports, which both worked perfectly. I should also add that making calls Bluetooth works quite well with this stereo; it comes with a microphone that you can position how you like in your car. So far I've had no complaints about the sound quality of calls. It also comes with a little remote which is a nice addition to the package, even though I don't always use it, but it's cool to have it. So in short, this is a pretty damn fine car stereo and I definitely recommend it to anyone in the market for a reasonably priced stereo with Bluetooth (for calls and music), and aux and USB ports.