I finished Doom - it was a good shooter, but it wasn't Doom as how I remembered the original through Doom 3.
This Doom was faster, much like the original Doom - that was nice. Doom 3 was slowed down and became a monster closet FPS - which was tedious, especially with the "you can't have your flashlight and a gun out at the same time".
The original Doom thru Doom 3, they all gave you moments that made you jump. Something unexpected comes roaring out at you when you thought you were safe. The new Doom lacked this, which is sad.
I felt like I was playing a cross between original Doom 3 and Quake 4. It had the story (doom soldier, fighting the hell spawn and blah, blah, blah), but it lacked the tense, surprise you with a monster that comes out roaring (loud roar, make you jump and run like hell for a moment)! It had the faster pace of Quake 4 and had a similar art style as it (from what I remember - I didn't actually compare images), but had all trademark Doom hell creatures.
Don't get me wrong, it was a fun and pretty entertaining shooter, but it didn't feel like Doom. I spent about 11 hours playing on normal (hurt me plenty, I think was the difficulty) and it didn't seem all that hard. The bigger demons weren't harder, they just took more shots to kill over the weak demons. I did enjoy the gory kills, those were fun. Get a target stunned and go in for the up close and personal death strike - I did them all the time, as much as I could. I think that's what really kept me playing. The story was okay and the ending was about what I expected. I liked how you obtained a "second jump" - nice to see it in a game and used well. I also liked being able to climb/grab ledges, it added depth to the maps and in some areas you could get to the main objective going 2 different ways. And as always - the chainsaw was very fun.
Upgrading weapons was too easy - it should have really limited it more and forced you to focus on a couple of weapons instead of being able to upgrade them all. My favorite weapon was the pistol, I maxed that out first and then I took up the explosive round for the shotgun - I used those two weapons the most. I tried seeking out secrets - some that I found were a bit tricky to find and others were very simple and shouldn't have been a secret.
The game ran flawlessly on my system. I was a bit disappointed when the game didn't support 5760x1080 very well. I could run the game on that resolution, but everything was horribly stretched, it looked bad. I had to settle for 1920x1080, but it looked really good with everything maxed. I however did turn off motion blur (god how I hate motion blur) and ambient occlusion since a few other games I've played that had that option made for blurred lights all mashed together and it caused issues with how the game actually looked.
If I had to rate this game as an actual Doom game - 6/10 (lacked that Doom feeling of tense, make you jump moments and was overly bright....didn't have the looming sense of doom atmosphere)
If I had to rate this game as a FPS shooter that isn't a Doom game - 8/10 (story lacking and same tactics worked, constant running in circles and shooting things...it got a bit dull)
Certainly enjoyable and I'd say was a good $20 spent.