I hate it
Sorry, but I do. If the proposed physics should work you'd be able to hover the square. You aren't able to. One second it's barely moving, the next it shoots into all walls within reach. Annoying.
Also in games like this where you want to go for the achievements restarting a level should be quick and instant. One click - restart level. No clicking a menu, locating retry button, clicking retry button, watching level intro screen, clicking level intro screen, then playing. Annoying.