Cons: low impedance
I've owned a long string of very cheap headphones (bose earbuds fall in this category because of how bassy they are, and the plug falling apart) so i started to upgrade my sound system. Headphones first.
I did about four days worth of research (including lurking on this site) until i decided i could get the most bang for my buck with the ATH-AD700's.
They came, i listened to them all the way through burn-in and absolutely love them. Some nay-sayers think there's not enough bass, but i'll have to disagree; there's plenty.
Next upgrade on the list is a new cartridge for my turntable. I'm excited to hear the differences between my old cartridge and my new cartridge with my AD700's in the near future.