I was warned/told point blank not to buy this game, but being hard-headed I did anyways on the most recent sale. It was a huge mistake. There is pretty much nothing redeeming about the product.
Let me break it down for you: the area design is bizarre and exploring is both frustrating and tedious. The combat is imprecise and the enemies (on Normal difficulty) rapidly become bullet sponges. The platforming is even worse. The jumping animation is downright laughable and is hard to predict. I ended up skipping the cutscenes due to the painfulness of of the story, writing and voice acting.
Some of the level art is nice, but it isn't worth suffering through the rest to see it.
I regret purchasing the game and I wish I had listened to the recommendation to avoid it. The demo doesn't really reveal many of the issues of the game so considered yourself warned.