Just launch already.
It's not clear to me how your reviews are more trustworthy. Voting reviewers has existed for a while on Amazon, but I'm not sure that isn't gamed.
Apart from trust, the other problem with reviews is that their relevance depends on the type of reviewer. For example, being Indian, when I'm looking for Indian restaurants, I trust reviews of Indians more than those of Americans because my expectations are more similar to other Indians. If I'm looking for hotels to go on vacation with my kids, I want reviews from other parents, not 20-year old single dudes who hated some place because there were too many kids making noise.