+1............. If you are looking for JUST good sound, pick up some Sennheiser HD700. They are among the very best headhphones you will ever hear (IMO). Right now they are priced similarly to the M2 (I listen to both just about equally).
If you don't like the ANC, or BT, then I suggest the wired version as they are cheaper, but have a VERY similar sound signature. I have seen on some of the "junk" review websites (you know, the ones that rate Beats VERY high) that these headphones (while not rated as number 1 simply because of price) are rated as elite/audiophile grade headphones in the bluetooth category, and are even highly recommended by them ("if you have the money"). I guess what I'm saying here is that these sites brainwash people into believing that to be number 1, price is definately a consideration to a product.
This turns thing upside down from what they used to be. If a product is the best at what it can do, I don't find that price should be considered. Number 1 is number 1, not number 1 is good IF they are cheap. My point is that it goes the same for options of a device. Are these the BEST sounding headphones in their price range? Nope. But, if you add all the things that they can do, then yes, they are the best sounding that you can get (again, IMO). So, for the class they are in, they are the best you can (currently) get. While there ARE some people that would say that the Ziks, or Sony, or etc... are much better (in this category), I'm sure that you will find that the (majority of) people that have given them an honest listen, and judgement based on all these can do, have found that there is really nothing comparable on the market at this time.
All that being said, I am not convinced that Sennheiser has done anything with the electronics (to fix the issues). Or at the very least, nothing that helped the BT issues previously had by many. I say this because I own both rev1, and rev2 versions, and while it is very rare that either drop out or stutter, it is still there. And, when it DOES happen, they both do it equally, and in the same spots. But to be fair, I have noticed a VERY small amount (less than with my M2s) of this with my Bose AE2W (BT, APtX) phones with my Sammy phone. Now, the older BT phones I have (such as the Plantronics Backbeat GO, and Rocketfish MAB2) NEVER cut out at all, regardless of interferance.... Hmmmm