Summary: Edit (7/25/11): Came with a pleather carrying case which is nice. Great entry level DJ'ing headphones.
Uncomfortable to wear for a long period of time, after about an hour you'll start to feel discomfort from the pressure the headphones put on your ears.
Pros: Superb lows, great mids and highs. Great for mixing.
Cons: Uncomfortable to wear for few hours with the stock pleather earpads.
After wearing them for one hour, I had to take them off because of the pressure on my ears. I tried to bend the headband, but they still kept hurting my ears.
They have decent SQ for the price. The bass goes very low (30hz sine-wave hearable).
Conclusion: In my opinion, while the headphones are light weight, comfort could be an issue with many users. But that's enough about comfort. Let's now move on to the sound quality. I don't claim to be an expert, but this is what I found: Smooth, nice bass punch and nice mids and highs.