All the important stuff has been said, and it's great to see that there's a dialogue going here. My top priority is how long it takes to get into a game. I guess automatch will fix this. And for some reason the lack of buttons for Watchtower particularly annoys me, probably because it seems like an easy fix. But I don't want to just repeat things, so here are a couple other things I didn't see yet in this thread:
When I play with friends who are new to Dominion, they wish they could see the whole card in the Supply because they don't know what they do. The art is not as useful to them during their Buy phase as the card text would be. I know you don't have room for the whole card, but maybe let people pick whether they see the top half or the bottom half? Or have the art switch to card text on hover so you don't have to click through them all?
It would be nice if the Estates stayed by the other Victory cards in Platinum/Colony games.
There should be (or maybe there already is and I just can't find it) a list of known rules bugs, not pages of forum-style bug reports to search through. Whenever Band of Misfits/Herbalist shows up, I think, do I risk it? I wonder if they've fixed this...
I really appreciate that you're taking the time to fix everything properly and not just rushing out Adventures. Thanks!