I just don't bother to read reviews. For the most part, reviewers just try to tell their audience what they want to hear, and you can pretty much guess what score a game will get before it's even been released, and that's before you even take into account that score systems are a bloody stupid idea, that tell you nothing about the actual content of the game.
If a game's premise intrigues you, watch gameplay, if you like the look of the gameplay, give it a try. I've found I'm making far better purcahses since I stopped relying on review websites for information, and started forming my own opinions, even if I haven't played the game yet.