I had my fun with the game and put around 60 or so hours into it. But after finishing the main story and with all the weekly events, boosters, NG+, etc; I still have no incentive to go back. On it's own, the game is fine, but compared to Dying Light 1 it is a downgrade in a multitude of ways: The combat has lost all it's weight and enemies don't seem to react at all to melee weapons, even after the physics update. It's also one of those games built around a "gear level" so you're constantly chasing that higher number. The first game had a system like this too, but here it just feels very... Ubisoft. The world is fun to explore with a reworked grappling hook and paraglider. Lots of quests make good use around the parkour which is primarily where most of the fun comes in this game.

This game has a lifespan of at least 5 years and while I bought it at launch, I haven't really played it much since the initial week or so after release. I would recommend waiting for a sale or to see if they work to improve some of the more annoying gameplay design elements first. Never played co-op so I can't comment on that.

tl;dr it's an alright game, but you'll get more bang for your buck and overall enjoyment out of Dying Light 1 imo