Absolutely amazing! A great sequel to a great game. The gameplay is fantastic, and though the story may stumble in places (I loved it despite this) the gameplay more than makes up for this. The multiplayer is fun, but the campaign and its replayability is by far the biggest draw for the game. Some people may complain about the lack of ammo you get, the game's difficulty and the amount of colour in the game (not to mention the marauder), but all of these things serve a purpose and work in culmination to create an absolutely incredible experience.
Don't listen to the critics- if you're good at fast-paced videogames (or prepared to get better), liked DOOM 2016 and willing to learn and understand the game's mechanics, then you'll have a great time playing DOOM ETERNAL.
Highly recommend this game, had a great time playing it-and replaying it, for that matter- so if it sounds interesting, then I suggest you get it.