NUTS: U.S. players can play on Amsterdams Poker. The tables themselves are very nice, with realistic 3D avatars and with no lag. While lacking on the high stakes games, Amsterdams Poker is awesome for micro/small stakes players.
BEATS: Amsterdams Poker is on the Everleaf Gaming Network, which unfortunately has a very small player base. Depending on the time of the day, it can be hard to find the games that you want. Amsterdams Poker has a very weak tournament schedule.