I like it.
During the tutorial, my ball bounced off at a nearly flat angle, and it took a while to come back down to the part of the screen with anything interesting.
pablo, we are glad you like it! Thanks for reporting it, we are already aware of the issue and are working on a fix so this does not happen during tutorial.
During the game it should not be that big of an issue as there is a gravity field and mechanism that updates direction angle when it's too flat, though it works too slow for tutorial in the current version.