I got this today, played for probably an hour and a half. I'm up to chapter 3 so far, and while I still like the game, I think it's kinda boring. You can pretty much exhaust the depth of all three weapons in about 10 minutes, and there's hardly any enemy variety so far. Visually, the levels are fantastic, but they're actually pretty repetitive and extremely simplistic to play through.
But I still like it because the art design is pretty amazing, and the music seems good too. Hopefully it picks up a little later.