Really good FPS shooter and the game itself:

1) Trains your reflex.

2) Strategic quick attacks using your reflex, speed and awareness (you have like 2 seconds to think, where to attack next. Fast chess-like game I'd say) :)

3) All the demons now are tougher, some even way stronger than before. They won't allow you to come closer to them that easy or spam 1 weapon, like you could've done in the past games. Not even peek and shoot strategy will work, which is good. The stronger and clever the demons = the more challenging the game is = the longer you will play it, simple.
Higher difficulties will really make you think twice before attacking and sometimes you will rage XD

4) Has plenty of blood and sick scenes, graphics are awesome and realistic, especially on ultra high quality.

5) After playing for a while, you surely will see some difference in your reaction and reflexes by few seconds...Personally, for me some fps games became slower and easier after I played plenty of hours in this game.


Now to answer to people, who complain about new stuff/content, (majority of them are trolls, who play like noobs, casuals. Dumb guys, who hate the game without any serious arguments) and to people, who are planning to buy/play the game. (Again these answers are made based on the comments that I read online and in steam):

For people, who think flame belch, dash ability and other devices/tools were bad idea....Guys, really...stop being ♥♥♥♥♥♥♥ whiners and face the reality...

1) Dash has been added specifically to evade some fast and heavy attacks (which are used by nearly all the demons against you). Instead they removed crouching, as Marty Stratton has said, because no one used it and crouching had no advantage whatsoever....The "id" company only evolved the game and gave you more abilities.

2) Why the hell would you complain to "id" company and write this ♥♥♥♥ stuff in a review on steam about it? Flame belch and Freezing grenade are also, just additional tools, to make life easier in Doom Eternal, because once again...ENEMIES ARE WAY FASTER AND STRONGER than in other Doom games. And yes...the grenade was already present since Doom 3 and in Doom 2016. All "id" did is installed granade to the canon on the shoulder of the Slayer. These aren't new gadgets whatsoever! So I don't get these idiots, who say "grenades are new tools and make fight more complicated and less fun".
And no one forces you to use grenades or other tools, but I doubt that these haters will survive long on Ultra Nightmare difficulty...Another point in ♥♥♥♥ story, where haters hate the game and tools in it, without any logical argument!

3) Doom Guy/Doom Slayer runs with same speed as in 2016 (tested by modders and confirmed), so quite bullshiting about him being slow. Moreover, you have a perk to boost your speed significantly after a glory kill, another point to the ♥♥♥♥♥♥♥♥ story of Doom Slayer being slow....

4) People complain about many tools, buttons to press during the fight? Well what the hell do you expect from a First Person Shooter in 2020?
If you still want to play casual fps game...Where you keep on just running and shooting/hiding and shooting behind the wall like in old days, with no additional buttons to learn...this game won't satisfy you. Go back to the old Doom games and stop stinking around. Casuals aren't welcome here!

5) People complain that in previous Doom 2016: "I could have grabbed super shotgun and cleared whole game with it, Doom Eternal is way complicated in this section"
True, Doom Eternal will not allow you to clear the entire game with only 1 weapon, example: Super shotgun. This game teaches you to handle and know each weapon in your arsenal - you are not just clearing the game with the most BORING style "bang bang double barrel shotgun only" - you will use combination of weapons to kill tough demons - inspires you to play Doom Eternal more and perfect your tactics of killing each demon fast.
By statistical analysis of steam players, around 70% of Doom 2016 users, played around 300 hours maximum and then quit playing the game = because what else can you do in a game, where you have 1 ultra buffed weapon that kills any demon fast? Game simply becomes boring and people drop Doom 2016 way faster.

6) People say items/ammo look more like in 1993 Doom games and drawn-like, or graphics are too bright like in arcade game. Well that is one of the bonuses that designers wanted to give us. So OLD fans of Doom would enjoy game in nowadays, more familiar to them...AND STILL, if you don't like it, there is always an option to change it how you enjoy it more:
Nowadays with new patches, mods and other stuff you can change graphics around as you wish: arcade like, gritty and more similar to Doom 2016 game, scenario mode, 2D graphics like in Doom 2, dark like in Doom 3 atmosphere (many haters kept complaining that Doom needs "this ATMOSPHERE OF DARKNESS" in a ♥♥♥♥♥♥♥ shooter, which tried it once and ended up as a failure Doom 3).
With mods (which "id" totally supports as they said) you can change skins of Demons like in previous games, change sound of demons and weapons of Slayer. Invisible loot drop. Choose anything what is optimal...
You can create out of Doom Eternal the Doom game that you absolutely enjoy: skins, sounds, atmosphere, whatever you want...but nowadays stinking about that "the game is ♥♥♥♥" is always the easiest way that trolls and ♥♥♥♥♥♥♥♥♥/haters pick...

6) Doom haters keep talking about Doom 2016 and Doom 3 with their dark "atmosphere" and Doom Eternal ain't having it. Both of this games (Doom 3, Doom 2016) had only 3 or 4 colours max, which were used in any room and every surrounding, if you look closely. If THIS is what you call "DARK ATMOSPHERE", well then I won't comment on how boring and dumb this ♥♥♥♥ is...Hence why nearly 60% of all players after clearing Doom 3/Doom 2016, they leave it and won't return. Or if they do, once a year... DARK Atmosphere in a ♥♥♥♥♥♥♥ shooter, which had none of this ♥♥♥♥♥♥♥♥ for 25 years?
When player sits to play Doom, he prepares to "RIP and TEAR until it is done!" Not to have a delusional dark atmosphere...

7) Facts about these "♥♥♥♥ atmosphere in Doom". Let the fans judge it:
Doom 1 & 2 - They are ♥♥♥♥♥♥♥ CLASSICS! They were and still free!

Doom 3 & BFG (Dark ♥♥♥♥♥♥♥♥ atmosphere) -
3.5 million copies sold.
32.4 million USD profit.

Doom (2016) (couple of dark ♥♥♥♥♥♥♥♥ atmosphere) - 3.6 million copies sold.
207 million USD profit.

Doom Eternal - 7.5 million copies sold.
450 million USD profit.
These are official numbers from "id website", so even if you add the profit of Doom 3, Doom 3 Bfg and Doom 2016 TOGETHER - Doom Eternal still shows way greater profit than all of these 3 games with a "♥♥♥♥♥♥♥ dark atmosphere". Verdict = Doom Games and majority of its fans don't need a dumb dark atmosphere in a first person shooter...Doom Eternal even doubled the profit of Doom 2016!

7) So if you are a new player in the series of Doom, before listening to/reading the ♥♥♥♥♥♥♥♥ stories of dumbass noobs, trolls and haters on steam or anywhere (who complain about the game without any sort of logic or an argument), play the game yourself, at least for 100 hours and then make a decision! Maybe add some mods to make your Doom life more nostalgic. Haters call themselves 25 year-fans of Doom series and keep criticising best Doom yet so far...But they ain't got brains to see the basic things and logic why new things were added/Doom only upgraded itself. Make your own decisions and don't listen to them :)

"id" really worked well on Doom Eternal, many things from Doom 2016 (which was also an excellent game in its time) were taken too, some new content and stuff were added.
Doom Eternal is 1 of the best games I played so far. If you are a fan of all Doom series, like me, this game is worthy of your time.

Thanks again, "id", for a wonderful game, which will be remembered forever, In my honest opinion.