Not particularly. For all the developers' statements that the art was too low-res, the art actually looks perfectly fine at 2x. It's the text that's the problem. It's playable, but it's pixellated. I've been playing with it at 1x.
However, the app is
definitely going Universal (which looks like a bit of a redesign, too, not just improved art assets), so if you're keen to get it now, you won't be stuck at 1x or 2x forever.