You obviously missed his famous "Where Vista Fails" review.
Yep.. in fact, I missed every review he's ever written. I have no idea who he is.
He's a Windows/Apple zealot. He's been following Vista since the beginning of it's development.
He does a pretty good unbiased review imho, and he gets the most information straight from Microsoft. He's accidently leaked some stuff (Like the Codename: Longhorn) and made some pretty grueling reviews torwards Microsoft.
I like what he does because he says it like it is and doesn't sugar coat everything. Also his reviews are some of the most indepth I've read.
You should definitely take a look at him if you're looking for a good clean unbiased(or mostly unbiased) review of Vista.