I was worried about that too when I first saw it, hell even when I caved in and picked it up. At least for me I find that the 3D doesn't take away from it. It's definitely Risk of Rain, the same feel as the first. The lemurians, vagrants, wisps, imps, other mainstays are all there. And really they've tweaked the attacks and their patterns some to take into account that the player can now move about in 3 dimensions. So it really balances out, the only real gripes I would have are about not being able to see what's going on behind you, making enemy flanking much more dangerous that in ROR, but the ability to move in more directions ameliorates that.

Yep to each their own, although I would say that while ROR2 is a third-person shooter perspective. The feeling of and a lot of the strategies and mechanics are very similar to the first game.

Hope you enjoy it!