It's technically better than Doom 1 with all the things it adds such as the GOAT Super Shotgun, the Mancubi, Pain Elementals, Arachnotrons, etc. but as someone who mostly plays these for the campaigns I certainly didn't enjoy it as much as 1. All the issues I had with Sandy's levels in 1 (which AFAIK is the result of him having to learn id Tech 1 in a short span of time) feel exacerbated here, he still loves tricking the player with traps and monster closets, mix that with his level layouts which not only feel incredibly confusing (e.g. the City levels) but frustrating to navigate (like The Chasm) and it just becomes unfun. I do like McGee's additions though (except for The Crusher), especially the more arena-oriented levels, they make for a nice change of pace from Sandy's. Fine overall but weaker than 1's campaign.

Also FUCK the Arch-vile. All my homies hate the Arch-vile.