To me, they are one of the best mid-fi cans I've heard.
I'm very, very picky with headphones and they seem like keepers for me.
They are not bass anemic at all. They have a very solid, strong low end, extension into sub bass is excellent. The treble is both smooth but sparkles too. If you're super sensitive, maybe they aren't for you, but they provide a very agreeable treble to me. The velour pads sound better to me, I think the pleather pads make them sound a little darker. I had them side by side with a DT770 and they are so much better in terms of controlling that headphones spiky and fatiguing treble. The mid-range is also much improved and smoother and more forward vs the 770.
They have really good imaging and great soundstage for a closed back. They are awesome to me for movies too, the hard hitting, deep, rumble of the sub bass they provide make me feel like I'm in a movie theatre.
Also, I can plug them right into my laptop and they sound good. But they also sound great from a good amp. They work really well with my cheap Fiio E10k too. They are very versatile in this regard and also play great with desktop amps.
You also get great isolation. For a totally sealed can, these do so much right, they are hard to consider parting with.
I'd say try to look for a solid deal on one and try it out. I have always been in the camp that thinks YOUR ears should make the decision. I can sit here typing till my fingers are sore, but you've still gotta listen for a while to see if they agree with your ears as well as they do mine.