Only thing I am ambivalent about in PoEII is the mapping system. In PoE, when you had to revisit an area, the map rejiggered itself and you had to play out the whole area again. It's true that the benefit is you level much faster--but I see that as a gimmick, really. It's forcing you to grind. The mapping once accomplished for an area should remain mapped. All in all, I loved PoE and they added so much to it after the first release that it is difficult to describe. I play single-player, as really, that is the way the game is made. You can become involved in multiplayer scenarios if you want, however, it's optional. Like D4, you can see other players at times, but you are free to ignore them. I look forward to seeing what PoEII has to share! I never purchased a single cosmetic in PoE and that game is more than fine with standard textures--have no interest in buying cosmetics for D4, either.
It is well known that I cannot err--and so, if you should happen across an error in anything I have written you can be absolutely sure that *I* did not write it!...;)