I'm looking for a new pair of closed back phones and am leaning towards the primes (with DUM cable) as they are on sale at the moment. I'll be using them solely at home so the "harsh" looks don't matter that much. As for my own preferences, I love everything about the T90 but need to get closed phones for various reasons.
I think I will pull the trigger on these pretty soon unless some one can come up with a compelling argument to go with another pair (e.g. Ether C).
AP is the best I have in closed cans. Just be sure to amp it well and properly fit it over your ear. I initially used it with a portable amp (C5) when received it at work, I was about to repackage it for a return. Later on, I brought it home and fired it up with Burson Soloist, preamped by WA2; result: astonishing, brilliant , delicious, powerful, touching, deep, you name it. For $800, I get a lot and beyond expectation with a great build quality, comfort and excellent isolation. Brilliant job from guys behind its creation.