Pros: Sub-bass, Good Soundstage, Sounds good un-amped, Fun With EDM, Price/Perf Ratio.
Cons: Long cord, Stock pads aren't great, Sharp treble, Leakage
For the low price point that these now sell at, it's hard to find a much better choice. Its sub bass is powerful and it adds a very fun bottom end to EDM music. Good sub bass is hard to find in a headphone, but the D2000 excels in this area.
In addition, they present music in a large but natural soundstage.
They are detailed and perform well un-amped! If you do not have a separate DAC/AMP unit, these still sound good. I enjoy playing them straight out of my macbook, with itunes or watching youtube with them, although I own equipment I can use to make them better.
One nice upgrade is the Alpha pads, they bring comfort to a maximum, improve the soundstage, and overall just work very well with the D2000.
A few cons. The cord is rather long and annoying. The highs are can be harsh at louder volumes.
If you listen at low-medium levels, they should not become too problematic unless you are particularly sensitive to treble.
Again, my review probably doesn't add much to the available reviews, but I have to say these are nice headphones for the price.