From working at Gamestop. all the people that ask me whether a game is "good or not" simply want to hear is it fun and easy to get into (or with the case of sports games has it changed a little but not too much so it isn't hard haha). I mean they generally don't want to know what reviewers think, just if I think it is fun. I doubt the majority of people care if games have groundbreaking features or revolutionary ideas or whatever we talk about here. All they want to know is if they can pick it up and play, enjoy it, and if it is similar to things they enjoyed in the past. There's a reason Modern Warfare 2 was so popular haha.
Now for me personally, yes and no. If it is a game I know I'll like, I don't need a reviewer to tell me if they think it was good. But for genres I don't play a lot or ones I'm iffy on, I'll see what they have to say, but not so much on the score but what is said about it in their experience. I wouldn't say reviews make or break me, just might save me some money as to buy a game at full price or not.