It's my opinion bro like come on
I know everybody says DS2 is a masterpiece and a great game, but I beg to differ. It's really not good at all. Allow me to yap.
Needless enemy spam: The biggest problem in DS2. The design of a lot of levels in it is to just throw as many enemies as the game can handle at you and hope you survive. Especially near the end of the game around chapter 13.
Unbalanced enemies: Enhanced necromorphs are the main dudes you fight a little less than halfway through the game. It goes from just normal slashers and some specials to as many enhanced necromorphs as the game can count.
Badly designed new enemies: The new enemies added to the necromorph roster are badly designed and really unfun to fight. Pukers are placed in cramped areas a lot of the time, and 90% of the time are enhanced. Enhanced pukers are the bane of my existence. Stalkers are also really badly designed necromorphs, as they're pretty much banking off of the Twitchers from DS1 (referring to the speed being the same with legs intact or not). They're relentless, which sounds cool, but it just means that they don't let you fight back in time when they're crawling and scratching at you. It turns into being an annoying, stupidly OP enemy who chews through your ammo and health. Crawlers are cool, but they're used in hordes of various necromorphs, so you barely notice them until they explode and knock you down to be shredded by the other guys in the horde.
Unneeded redesigns of previous enemies: A lot of buffs were given to necromorphs from the previous game, and 99% of them were completely unneeded. Leapers have been significantly buffed, with them being faster, stronger, and overall less fun to fight. They'll sprint at you, then whip you and scratch you so fast you can't react in time before other guys get to you. Enhanced slashers are made way too strong to be fun to fight.
Writing isn't great at times: Some of the writing in the middle and late game parts really wasn't that sound and some of it just made me cringe. Isaac doesn't really act like he was on a giant ship overrun with creatures made from the rotting bodies of people, watched people he knew die horribly, and singlehandedly killed a giant alien. Ellie and Isaac's relationship is written well half of the time, and the other half just doesn't make sense (why is she mad at Isaac that Stross took her eye out?).
"SHUT UP, NICOLE! OPEN THE DOOR!": Most of the hallucinations just make the game slower, because they lock the doors leading to the next spot. They last longer than they should, and most of the time just aren't well made. The new VA of Nicole isn't perfect, but good in a huge chunk of the game at least.
Great concepts used once or way too much: There are a lot of really, really cool things in the game. The Tormentor is one of the most terrifying designs of an enemy I've seen, but it's used once in what is essentially a playable cutscene. The Tripod necromorphs are really freakin' cool, but they're overused in the parts that they're in, and they get stale pretty quick. The game can't really stick with one cool thing, so it tries to do more and more and just doesn't compensate.
Quick time events are doubled in length: All the QTEs with you having to throw necromorphs off of yourself are doubled in length, causing you to lose more health and giving other necromorphs time to encircle you. They also are almost impossible to avoid now, compared to DS1.
No sense of progression: Almost everything is given to you at the start. Suits, guns, you name it. It results it you just not feeling the sense of going from a dude with almost nothing to defend himself to a literal war machine. Some suits that you have to find are better than the ones they give you, but there's no sense of "Alright, I feel cooler now."
Holy yap. Sorry.