I just played a game with Island. I also had a Tactician and Ironworks with Laboratories, so I quickly bought up all the Islands and auctioned them off with my Estates and Coppers, while my opponent simply trashed his Coppers with Moneylender. Overall, he had the better deck, but since I bought up all those Islands and stashed them away early, using Tactician's extra action lending, I was able to pressure my opponent to buy Provinces quickly, which he was not able to do because I could tie and still win. So Island isn't TERRIBLE, but man you'd better have the right deck for it. As is with all cards.