I'm a couple of hours in and I'm really loving this game. They obviously took a lot of inspiration from Doom Eternal but Doom 2016 took quite a bit of inspiration from Shadow Warrior 2013. I love Doom Eternal so having another game very much like it is great for me. Obviously with the over the top Shadow Warrior flair. I'm a big fan of arcade/arena type FPSs and this is a good one in my opinion. It even runs fine on my old 680 GTX on low settings. If you liked Shadow Warrior 2013 then you will likely like this one as well. It does seem like the game is on the short side though so maybe wait for a price drop before buying.
