I'm impressed with V6 of dA!
Being a webdeveloper and regular dA-visitor I always had my own ideas about this site, how things could work better and how the structure of the site could be improved.
With the release of this version they covered most of those things! My only comment is that the frontpage standard has tóo many options and could scare away first-time visitors.

Otherwise it's all done very sleek, more AJAX, dynamic rendering and stuff like that, me likey.