I played Val for the first time in a year and I remember exactly what turned me off about this game.
1) Rotation times. I'm playing Chamber on Abyss, and it takes five whole freaking minutes to rotate from B site to the A site. My character is so slow and the map is so big. By the time I reach A site, the round is already over. This never happens in CS.
2) Attack side is just go A, get stopped initially, wait outside A for 1 minute, then finally hit A again. There is no defaulting or map control like in CS. Part of that is because the agents rely on each other, but holy hell is Attack side just boring AF.
3) Gun play and movement is so unsatisfying. In CS2 you are aiming, shooting, and moving more in general. It feels like I'm playing an FPS game. Val is more abilities with gunplay sprinkled in. If you like abilities over gun play and movement, then Val is the preferred game.
4) Teammates with Valorant accents and cringe banter. I think this is mainly an NA thing but my teammates were all sinatraa wannabes and trying to banter with each other. This is such a big difference compared to CS where my teammates are much more serious about the game.
I did enjoy some moments like playing Clove on Haven, but that's because Clove is still an overpowered agent. All in all, I do think Val is a fun game when you play it casually. It's very easy to just drop in and play the game since it's not mechanically demanding.