The base game is really bad. If you include fan-made WADs, this game is really good.

It's the same engine as Doom with some sick new additions, like the super shotgun and Archviles. Unfortunately, it's held back by some absolutely atrocious level design. This game's levels feels like some dogshit from an old forum thread. Boy do I love softlocks, enemy spam, dumb gimmicks, stupidly long levels, introducing new enemy types in moronic ways, and camping. After falling in love with the first game, this one felt like a slap in the face.