Bought these quite recently for the office and I have to say the 600 are brilliant for classical, orchestral music. I have tried vastly more expensive phones but these shine with that genre more than what I have ever tried, because they are ....romantic. Not the most impressive soundstage, technically could be better in most aspects, but the 600 are simply addicting and immersive for hours and hours because the mids are fantastic yet not unpleasant.
Also, two good features that these have and practically everyone overlook are comfort and prolonged usage. I can wear and listen to these for hours and hours, which is quite rare in proper high quality anything.
Finally, a good reason why I bought these is the interwebz said they work ok with all sorts of song/file quality, even youtube and radio, and all genres. That does hold true, and to me it does matter since no one on his right mind would stop listening to those because he can't bear listening to anything that is less than lossless or that the headphones aren't made for. The 600 are simple and almost always do the job; they don't even need much amplification nor huge (as in big) external hardware for dac/amp.
On the negative side, the 600 aren't brilliant for metal (except Pantera, for some reason) and in the end they are a jack of all trades, master of none. These are spectacular for the usage I bought them for, if not the very best choice in the market no matter price range, but if you want to use your headphones for home, occasional listening and want to hear a particular genre more than the other, then go for something else (depending on budget). For what I wanted the only contender I can think of would have to be considerably more expensive, especially considering amplification, such as the HE-500, and even then those are quite heavy
Edited by avens - 7/8/13 at 3:11pm