I own a multi-site license of this plugin. It works fine and I make about $1,000 a month between my TV and PC Review sites. Dan is right that review sites can be good earners. If you have time to actually write reviews or can afford to pay a blogger like I do to write them every day and you find a good niche it can be profitable.
I like the WP Review Site plugin and its worth the cost, but I do wish that the theme he offers would show comments when people don't actually decide to rate a product (I get a lot of comments that won't display currently); I haven't had time to fix that issue yet but here are my sites if you want to see the plugin on sites with 1,000s of product reviews each getting over 1,000 daily unique visitors:
TV Reviews
PC & Laptop Reviews
I also recently added the
JustRelevant ad network to both of these sites and am seeing nice revenue from this by having my blogger add keywords to custom WP fields so that users can see prices and link directly to sites that sell the products we review. That ad network is absolutely the bomb and pays like $.38 per referral! Forget about CPA when you can get juicy CPC revs.
I honestly don't know Dan and am not writing this to plug his product. I just came across his site one day and decided to buy the plugin; it does work well. I can say this is the only WP plugin I have every actually paid for!
Now, I know a bunch of you fellas will go out and copy these 2 sites tomorrow but that's OK and best of luck to you catching me up; we have thousands of reviews written over the last 2 years so don't think a couple of reviews is gonna work! Product review sites are a great way to earn some good moolah.