I did subscribe to Gun Tests for a year. This was back a couple of years ago, and they weren't afraid to really bash a firearm that didn't perform.
But, I couldn't get past the problem of not having a large enough number of test subjects (I manage a chemistry and microbiology lab). Anyone can go out and buy one gun, even from what most consider a "good" company, and end up with a lemon. The inverse is also true.
So, as much as I enjoyed reading their reviews, I let the subscription lapse. It is (or was) pretty expensive if I remember correctly.