I do. To my ears the bass is deeper on the dj than the 7000. The dj's are more resolving. The 7000 is not a portable phone and no longer made so kind of hard to find. I like them both and would have a hard decision to make if I had to give one up but would probably keep the dj's although the 7000 are a little bit more comfortable to me. 7000 does not have user a user replaceable cord and does not have a single sided cord like the dj. Every little point matters to some users. To me I like the deeper bass and clarity of sound of the dj. I also have HD600 and HD650 both with custom cords and I prefer the sound of both the 7000 and dj to the Senns but comparing a open back to closed back phone probably isn't really fair as they are two different animals. What I like and what you like might be totally different. Buy a dj where you have a 30 trial. That is the only way you can tell if it is for you.
But if portability and isolatation arent a factor you can always get the d7000's and have them modded later B)