Anyone know of site that has a good amount of datacenter reviews? I have looked at datacentertalk.com and webhostingstuff.com , but I didn't find much on those sites.
For UK/Some European data centres data hop have good summaries containing some info that is not readily available elsewhere although obviously biased toward the ability to cable/put in transit hops.
http://www.datacenterknowledge.com have some good articles, news etc not user really reviews as such though
The problem with a site like that is: I don't trust Joe Average to 'know' data centers as well as I do. I also hugely distrust data center sales people. I had one tell me that they were 'practically Tier 4!' Yet I found many disqualifications to Tier 2 status on the tour.
Some of those that buy data centers (or data center space) don't really know what makes a DC. Not to mention that we all have different qualification for a 'good' data center. It depends on what you value. Do you highly value technical remote hands? Do you highly value the robust power infrastructure? Do you highly value a robust cooling infrastructure?
For me, I want a really robust DC and external remote hands. If the remote hands don't live up to my expectations, I can swap those out over the term.