I like it. There are some things that are unclear though. How do I get notified about my review if I never physically sign up for an account? How long does it take for the "moderator" to approve reviews? If the site gets popular this could be quite a pain on you to have to go through each feedback comment and approve or deny them.

I run a similar type of startup (betapunch.com) if you ever want some user testing done for your own website. Best of luck to you!

One more issue I am noticing is that from my "dashboard" page I can't easily see how to review more websites to earn more credits. For that matter I can't see how to do this from anywhere without having to submit my own website again for review...