Pros: Bass, Midrange, treble, build quality.
Cons: They are a too small, Soundstage is not good
Every part of the sound is very good, the bass, midrange and the treble are all excellent, I think that out of all the headphones I have owned, overall these are the best all rounders except the size and soundstage spoils it. It is like Sennheiser was reading my mind when they released these, they have bass right down to the limits of hearing, the usual Sennheiser midrange performance, and also treble which is very neutral and balanced. The overall sound is very good. The only cons I would say is that they can sound a little bit harsh in the treble, also they are too small and the soundstage is too small. If Sennheiser released a Momentum 2.0 which were about 30% bigger, had slightly better bass and treble and a bigger soundstage, I think that they would be 5 stars.