It's funny how this came up.
I just purchased the game a couple of days ago, and boy, it is worth every penny so far.
Yes, you do fail quite a fair bit at the beginning. Either by running out of gravity gauge in mid-air and smashing into the ground (thank goodness their isn't no fall damage, in fact, it only makes failing fun) or by doing as you said, and smashing face-first into walls and all kinds of things.
Yet when you master, or at least get to know the system. You'll be floating, kicking, and flying around the whole map, especially when you unlock all of the world. It also feels really good to fly, yes, sometimes it can be a little finicky, but it isn't too much of a bother, especially since it is the first game in the ip. Plus a lot in the game can easily make me ignore the finicky controls, especially since I really like the main character, Kat.
I'm really looking forward to Gravity Rush 2. I hope they can perfect their system, and hopefully make it seem more like a superhero game... at least a tiny bit.