I tend to think of him as a reliable critic, but being part of a small caste who thinks gaming on the PC at less than 60 frames per second isn't some sort of grievous offence, I do sometimes get a bit irritated by a few pet peeves he has. To me, they're nonexistent.
On the plus side, however, his Port Reports have turned out to be a good source of info for well-optimized PC games. It's managed to extend the life of my dual-core rig, seeing as several current-gen games are so well tuned as to only need an average RAM count and a decent graphics card.
Of course, that's when he doesn't unearth some kind of poorly assembled and thoroughly buggy mess, which allows me to avoid it. Looking at you, Watch Dogs...