Pros: Very neutral, Comfortable for long listening, Good Isolation
Cons: Narrower Sound stage than open cans
I have been mainly a Sennheiser fan for many years. The DH650's are my go to home HP's and the HD25-1 ii's are the "On the road" reference HP's. There I was in Best Buy and much to my surprise next to the latest Beats was a couple of pair of the DT-1350's! So before I knew what I was doing I had them in the car and plugged into the Fostex HP-P1 and the iPod Classic filled with AIFF lossless files. Luckily I had some time between appointments!
Over the next 4 days I have logged 15+ hours on them and I am really enjoying the experience. They are a terrific compliment to the Senn HD25's. More neutral with a smoother Bass. The 25's have more low end punch.
I found that I had a similar experience to the one Jude described in Head-Fi TV Episode 004:
I am now tossing both the HD25's and the DT-1350's into the bag for travel. I'll post more as I get more time and can consider my comments, but each of these portable reference headphones are long term keepers!