I used to be quite forgiving of it but a few months ago I watched both movies back to back again as the first is an all time favourite.
The 2nd has just too many issues for me to be able to enjoy it anymore that I probably just put up with initially. The first movie was virtually pitch black when there were no light sources, the sequel always has ambient light that means you can pretty much see everything the whole time. Secondly, there is no real sense of claustrophobia, the darkness and lack of space in the first was oppressive and hard to bear, here it's barely an inconvenience.
Also the sheriff and his boneheaded inability to listen to anyone is just frustratingly poor character writing, the girls in the first felt quite fleshed out and individual (aside from the andrenaline junkie), everyone in the sequel barring Sarah is 2D and just there to be cannon fodder.
Maybe 'utterly awful' was an unfair comment but it's mostly below average.