Not that it's a terrible game, it's just a terrible port. If you're going to play with a keyboard and mouse it's damn near impossible.
My guess is that it's better with a game pad (an xbox one, or one like it, would probably be best). It's a direct port, which means zero effort was made into making it function well on a PC. There are on screen prompts for button presses at the beginning, but they're for a game pad. The mouse sensitivity is insane and even turning it down doesn't help that much. Since the mouse controls the direction of your character, it makes it really hard to control your orientation.
Just wanted to give you guys a heads up.