HD800S is probably the last headphone you'll need after you get one - especially if you're able to use open back headphones. I would love to get one for myself but I can only listen to an open back headphone at limited times of the day and HD800S requires quite a strong amplification to be driven...
Phenomenal and balanced nonfatiguing sound; super comfortable; very light; great unboxing experience
Materials could've been much more befitting of the premium price; cables causes worry when detaching