Theory is a legendary player, and his take on the game is truly excellent.
I wish the simple, fast, text interface of the old isotropic implementation still existed though. I had a definite addiction to Dominion in college - three hours a day online for months - and the isotropic implementation shutting down was the thing that finally cured me. The depth, and the possibility of just ten minutes more for a wholly new kingdom, was so incredibly enjoyable, even if I never became an elite player...