except for the loose bass (when unamped) and narrowish soundstage but that's all. Narrow soundstage are found in typical closed headphones so it's not a deal breaker unless you are used to a more open sound.
Overrated - I must say (many will dissagree with me as it seems) beyerdynamics is really overrated, maybe not so expensive, but I see so many say good things about it but I really can't listen to them. They feel so flat for me compared with my q701 and hd650. I don't think I will ever enjoy a beyerdynamics phone.
Underrated - Well I would say akg q701. I got both hd650 and q701 and the akg is probably just as good as the hd650
The Momentum to me are definitely not overated! Indeed they are overpriced but it is to me, not overated. They are excellent for portable use except for it's non-foldable design. Of corse they don't sound as good as a lot of headphones at the same price but those headphones aren't as portable as Momntum and doesn't look as good as
I was at a store and sat down and listened to dt 770 - t70, didnt like any of them, way too joyless. I even listened with several amps, (including their expensive beyerdynamic one wich I didnt like either haha, dunno if there is a gain switch or so since I had to turn the knob to max). So yea, I think im not an beyer person.
