The browser build IS pretty rough, but I'm glad it's there to get the gist of the game before downloading. Love the inclusion of a level editor, the mechanics all flow together pretty well though it does take a second to get used to how things control and navigation is a slight bit wonkier than anticipated.
It does all work super well together once you get into the groove of things though. Very fun concept with great execution! I didn't run into any game breaking bugs during my play through :)