The multiplayer/co-op worst I've seen

Runs like shit. Single player is fine, co-op in the campaign is fine. Maps with a couple of spark mages probably doing nothing but running a macro and taking a dump IRL. Then you incude 50 mobs on the screen every ten yards and the latency.. Unplayble. No region lock, no latency indicator of the game's your joining (ping). Map design feels as it was made by a random AI generator that just throws anything into the map regardless of performance. Not good. If D4 is a 8/10 for co-op then this game is probably a 1. As in I would prefer to play D4 multiplayer 9 times out of ten than I would POE2. Good game otherwie but end-mapping in co-op is laughably bad.