I think the game is fantastic and well worth the $60 I paid at/near launch. It is like the old Doom games. You don't stop running and gunning or your dead. I really like the story as it plays out. No spoilers here, but I'll just say you aren't a faceless/nameless marine who has to clean up a mess. The glory kills are fantastic as they are not only super-sadistic, but also provide you with life & ammo.
The multiplayer is fun, if nothing super special. I've played around with it a bit and it has your usual modes with team deathmatch, capture the flag, etc.
The custom maps section called "SnapMap" is pretty friggin' cool. There are tons of levels you can play solo or co-op that id Software and end users have created. Some of them are very cleverly designed. It adds a huge amount of extra playtime.
Right now, I am actually waiting for the price to drop (as it always does) on the Collector's edition. It includes a steelbook case and a 12" statue of the Revenant that lights up and has spinning gears in the base. It looks really bad-ass.