Bioshock - Review @ Game Informer Online

Game Informer Online has a short online review of Bioshock.  It really doesn't offer good insight into the actual gameplay but the score is 10/10, as is the "second opinion" at the end:

BioShock also may seem like a game driven by its setting and the atmosphere it creates. While delivering a level of intrigue you rarely see in games, its most captivating element is its gameplay – which I can easily say delivers the most rewarding and adrenaline-filled experience I have ever had with an FPS.