I held off on reviewing my M100's because I wanted to get a good feel for the headphones quality in both build and audio before I wrote anything. I probably waited a bit too long as I have already purchased the Crossfade Wireless after spending roughly a year with the M100. I bought the M100 because I wanted something portable, durable, comfortable, and with excellent sound quality. I feel the M100 has met all those needs very well. In the past year I have used this on trips to Japan, Vegas, NYC, and Washington. I have used this with the Boompro Mic for gaming over the PS4 and I have used it for simply listening to music. My set of M100's have been put through their paces and not only survived but succeeded.Starting with build quality, these are built like a tank and V-Moda seems to go to lengths to make sure everything from the headband to the cords are built to last. I have been pretty light on my set in general. I haven't dropped them or bent the headband too bad. The most stress my set has gone through is in traveling. They have been folded up and squished in my travel bag regularly and I have to say that after a year of constant use, I did end up with an issue. A plastic clip on the headband had one of the screw holes break which meant that the clip didn't close well and folding the set up meant extra stress on the other two screw holes. Initially I would have considered docking a star for this but for one, it wasn't much damage and it didn't affect the sound quality at all, and two, V-Moda made sending it in for repairs painless. This is where I should point out that V-Moda has a 2 year warranty on this specific set of headphones, although I need to also point out that you need to make sure the seller you are buying these from is covered by the warranty. Anyways. I sent in my headphones on a Wednesday, they got there on Friday, they got repaired that same day as well as shipped back to me, I received them on that following Tuesday. Now the repair was a very easy fix and honestly I would have preferred them mailing out the piece, but they took care of it in a very timely manner.Everything else in regards to build quality has been top notch. The material on the headband is very nice and has held up amazingly well considering I have other somewhat pricey headphones that have materials that have started to peel from the headband and the earcups. The earcups I have used which are the upgraded XL earcups have held up very well. In the year that I have used them, they have become somewhat squished but the material is still in good shape and they are still exceedingly comfortable. With the repair done to them, my M100's look as good as the day I first got them.Feature wise, the M100 has been fantastic. The cliqfold feature allows them to fold up very small into a nice little shell case that comes with the headphones. Also. not only can you plug the detachable cable into either ear piece but the one you don't use can be used to daisy chain another set of headphones into the same source. Basically, when travelling with my wife I could plug the M100 into my iPad to watch a movie on the plane, then plug in another set of headphones into the open port on the M100 to share the sound from my iPad without the use of adapters or extra cables. It is a really great feature that I didn't realize would be quite as great until I used it. They also include a small plug to use over the unused port to limit sound leakage but I have already lost it and haven't noticed any difference without it.Comfort is excellent with the XL Earcups but mileage may vary depending on how tight you wear your headphones and how big or small your head is. I will cover more on this a bit later in the review. In general, the M100 holds the head very well without squeezing too much. I don't understand how this is possible because I have had other headphones that don't hold on nearly as well and feel like they're clamping down on my brain. Walking around with these, you never feel like they are at risk of falling off your head.The cables are durable fiber wrapped that are supposed to be able to take 1 million bends before they are compromised and I haven't had any issues with them so far. The controls and microphone have worked very well although I haven't used them as much. I do recommend buying the boompro mic from V-Moda if you want an excellent gaming headset. I have already reviewed the BoomPro Mic so I won't go into it much here, but they are a great accessory that really turns your M100 or any headphone with detachable 3.5mm jack into a gaming headset.Finally and most importantly, the sound quality. These are not designed for audiophiles but that in no way means an audiophile can't enjoy them. They are not neutral headphones. They are tuned for more modern music with a good deal of emphasis on bass. These are not competing with high end AKG, Sennheiser, or even Audio Technica, these compete and in my opinion best headphones like Beats. What these headphones are great at, is pumping out the bass while keeping the mids and highs very clear. A lot of other bass heavy headphones have a tendency to muddy the mids to an extent that makes listening with them almost unbearable. The M100 keeps everything pretty clear but more than that, it is tuned for fun listening. The bass is punchy and deep but the mids are still very clear and present. The highs are a bit forward but not at all annoying. While these are tuned for EDM, Hip Hop, Rap, and modern music in general, I have used these to listen to everything under the sun and haven't ever disliked any music coming through these including classical. These aren't open style so your soundstage will be limited compared but it isn't horrible and is at least as good as other closed style headphones if not a little better. In general, I have a lot of fun listening to music, movies, and video games with the headphones.A lot of attention went into making these a great set of headphones,but they are not without some gripes from me. The cords while very high quality and durable are still as bent and kinked as when I bought the headphones. This isn't a major issue but they will occasionally get caught on things or cause a little noise rubbing on your shirt. Also, comfort can be an issue. I have a big head but long term comfort with the standard earcups has been an issue for me. For the first hour or two I am completely fine wearing them. My ears don't get too hot and my head doesn't feel like its in a vice. After that first couple of hours my ears begin touch the casing around the drivers and begin to get achy. It gets to the point that I have to stop wearing them for a little and flex my ears a bit. This is not a problem when I use the XL earcups and because of that, I believe the XL earcups should either be included or be an option when buying to replace the standard cups.If you've read all that, then you should generally know what you're getting into. If all that sounds good to you then especially at the new reduced costs below $300, I can wholeheartedly recommend these headphones. Even if you are an audiophile with $1000 cans and a $1000 dac, there is still a lot to enjoy here for all of the features and fun tuning. If you're looking at a Sennheiser 650 and up, then we're talking a different game here. If you're looking at Beats or maybe even some of the lower Audio Technica headphones, I would take a close look at the M100. Also, take a look at the Crossfade Wireless from V-Moda if you're considering the M100.