I've played around 20 minutes of it, it can become quite addictive to get as far as possible.
Leveling up is satisfying, the abilities increase not just by a little when you level them up, so you feel your character grow stronger each time. The music and art are my favorite part of the game, it's really well done!
One thing that I was missing was the ability to shoot at enemy projectiles, and thus giving oneself the ability to dodge better by simply removing the obstacle. The difficulty ramped up a little too quick in my opinion (or perhaps I just suck, haha!).
All in all, a very fun experience!