Pros: I honestly couldn't find much I liked about these.
Cons: Sound was boring, flat, uninspired.
I don't own these anymore and never properly reviewed them, here's a brief memory I had of them.
I bought these used on Head-Fi to satisfy my "need" for the Grado sound after selling my SR80i and buying the Ad700s. I soon after upgraded my Ad700s to Ad900s and still missed the "Grado sound." I was excited to try these, very excited. I was expecting a harsh, in your face sound that kicked my ears butts. What I got was boring.
The previous owner had claimed 20 hours of use so I let them play for 20 more hours before making judgement. As much as I tried I could not get into these headphones, especially when compared to my Ad900. I honestly felt my Ad900 were better in every aspect. Led Zeppelin, Pink Floyd, The Beatles, etc all sounded boring, no heart at all. I believe it has something to do, possibly with the stock cups, but I just didn't like these. After 30 hours they were back up for sale and I was disappointed.
I wish I could have captured the Grado sound I had missed from my SR80i, but it wasn't here.