Pros: Very comfy / Overall good sound quality / Nice lows / Price
Cons: No significant cons
Overall good sounding. My DT880 might sound somewhat more refined in the mids and highs, but in the lows and especially in the low-lows the DT770 beat em. They are probably my 2nd favorite closed headphone, right after my beloved Denon AH-D2000 (which seem to outperform all other headphones I tried). I think it's a good idea to EQ this cans, by slightly raising the mids and minimally taming the highs you can really improve the sound of this cans.
The DT770/880/990 Pro are the most comfortable cans i tried, thumbs up!
Try em! It's simple as that...