Its Doom, you get you expect and there isn’t much more than can be added than that.
But if only to elaborate on that statement for the sake of it, all I can really say is that it’s very good and is very very much over the top in every perceivable way which just makes it an even better experience and leans heavily on its old school 90s roots much like MachineGame’s Wolfenstein reboot series.
It does have a story but it really only completely secondary in every way and can be ignored completely. Lots of exploration for unlockables, upgrades and secrets. The only slight issue with the game is that two of the three boss fights aren’t in my opinion the best designed partly due to the enclosed arenas they occur in which I feel clashes the fast paced design of the gameplay but I’m probably very much in the minority on that.
Other than that very slight issue, it is basically as near perfect as you can get. Very good and enjoyable way to pass the time.
Also would work very well as a game palate cleanser due its wonderfully simple gameplay loop and design philosophy.