Just got my DT1350 yesterday!
My initial impressions:
Pretty much what everyone says about these are true.
The discomfort is definitely there for a first time user.
After using it for 20 minutes, my ears became really red and painful.
Furthermore, the seal definitely requires time to figure out (but I think I got a hang of it after 2 days).
I position the headphone similar to this picture I found on head-fi:
The sound is pretty amazing once you can get a proper seal.
To me, it sounds very similar to the K550 I used to own... without the treble spike.
The soundstage definitely is small compare to my full-sized Q701, but for such a small headphone I find it to be quite impressive.
The accesories that came with it was pretty impressive.... 1/4" adapter, manuals, really nice carrying case and... airplane adapter!?!?! I never seen a non-noise-cancelling headphone that comes with an airplane adapter
Here's something else strange I found... or my dillemma...
To get the amazing sound, you need the proper seal.
But to get the proper seal, the position of the headphone of my ear causes me pain.
So... to get amazing sound, I must endure the pain...
Not too happy about that... but I hope once I get used to the pressure of the headphones I will enjoy this headphone more.