I'm all for this task, I'd like to see it in action. I mean I know you've already made a test review but I'd like to see this idea full fledged. I, myself, am an RO administrator, so that pretty much disqualifies me from assisting you in your reviews but you're free to do a review of my server, since you're hitting top ranking servers first and mine is at the first page of the low rates.
I would also like to suggest that these reviews should be made unable to get replies. Consider them as a critic-journalist's article. I mean, people come here in this site to advertise, and it should only make sense that this site has authorized critics to give unbiased reviews. As you wouldn't see replies in a critic's article in the journal, so should these reviews be considered something like a blog, for people to go through when they're bored/searching for new servers to play.
One of the points that made up the initial objections however is valid, and it is the point about servers constantly changing. Perhaps you should set a ground rule to re-review every server reviewed before after a period of several months (6 maybe?), so that's 2 reviews a year per server reviewed. New review should also replace the older unless of course nothing changed in which case a simple reply to the initial review stating just that would suffice.