I love the idea behind this site and if I get some useful feedback on my website, I'll be ecstatic.

Anyway, your site not really a success yet. You've just been Hacker Newsed. Traffic will probably go back down after today. It's happened to me before.

Anyway, it looks like a major bottleneck you are experiencing is that you have to moderate every review that's written. I don't think that's going to be sustainable. I'd try having using rate reviews "helpful" or "not helpful" like they do for reviews on most online stores. And then maybe have an automatic filter for easily detectable things like foul language or gibberish.

Good luck, I like you site.