(Aug. 2011): I like! I have to say I'm getting a little worn out on Dominion at the moment, though. So I'm taking a bit of a break from it. I'm not entirely sure how this one stacks up to the other expansions.
Kind of a pain to get the wares cards and the other cards in the right ratio, but there's some neat variations that I'm looking forward to trying. UPDATE (Nov. '09): Now that expansion 2 is out, I don't need to worry about the ware/non-ware ratio anymore. Yay! (This rating only when using both expansions.)
This game seems to be infinitely expandable! This adds a little more chaos to a game that some might think is too predictable. UPDATE (Apr. 2011): I'm considering adding this in by default. I think it's probably simple enough to introduce to new players.