I subscribed to Gun Tests at one time as well, and, like others, allowed my subscription to expire because there really wasn't any information in it that I couldn't acquire online. That said, I must agree that they don't pull any punches when reviewing a particular firearm, and I found that refreshing.
They usually don't print typical gunrag nonsense like, "The Smith and Wesson Jamomatic was a little quirky out of the box, but after the standard 5,000 round break-in period, it worked flawlessly with two of the eighteen brands of ammunition used. Accuracy was more than adequate for a combat handgun, with our expert placing five of eight shots in a six inch circle at four yards. Ornate and expensive, the Jamomatic is solidly recommended."
No, they'll slam anything, regardless of manufacturer, so I got the impression they were at least attempting to report honestly, which is more than I can say for the slicker and more well-known publications. Of course one can't take what any publication prints as gospel, but I never got the impression they played favorites.