Yeah, I'd recommend waiting. I enjoyed it and I'll definitely be playing through it again at some point, but there are plenty of bugs and spelling/grammar errors throughout the game that I noticed - even in the epilogue. And undoubtedly more since I only did one of the however many possible story arcs available.
One of the bugs is so bad it will probably stop a lot of people from getting one of the spires. You don't need the blocked part to continue, but that probably won't be clear at all to everyone. I only got through it because I was curious to see if I could; didn't even realize it was a bug at first. And it's obviously just frustrating just not being able to access it.
I never played PoE so I can't really make comparisons there. Not sure how the combat compares, and the karma system with the main factions seems pretty easy to progress through. I was at max favor with the faction I chose to side with before the end of the first act (out of 3 acts). Choices involving that faction felt less interesting after that, and you see them consistently for the rest of the game.
I will say that the final encounter is really interesting, but the end of the game is kind of abrupt and disappointing. DLC/sequel tease

Maybe I'll check out PoE until then