Review from gamer perspective. First and foremost it's better than most of "gaming" headphones up to 100e i would say. Compered to my previous headphones samson sr850, these are a bit better sounding (sr850 was open back), hyperx cloud 2 are total trash, hd 660 absolutely better in every way, cooler master mh752 was pretty similar sounding, but it costs 90+euro. Comfort is acually good, I can use them all day and can't feel any discomfort, I've been using beyerdynamic dt 990 pro previously and it is even more comfortable, but we all know how much it costs... For example in csgo every step is clearly hearable, very easy to tell from which direction enemy are coming. Build quality, well it is thinner metal and cheaper plastic than in real beyerdynamic dt 770 or dt 990, but what do you want from 39e headphones and they're not even that bad...In the end I would recommend them for those who is not using them for studio stuff (I don't really know, maybe they are good for that too, not too much bass, highs not hurting ears), for every day use really solid headphones.
P.S they can have a lot of bass if you like it, just need to use equalizer (for example "Peter's qualized APO", plenty settings there).