I enjoyed this enough to be on level 4300 but the last update ruined it. It's always been glitchy, lagging and freezing, but it's now intolerable. When it freezes, the only thing you can do is close and restart. You lose stars if you're working the storyline, lives if on the puzzles, and cumulative scores if you're doing one of the rocket competitions. I've never spent real $, but others report losing whatever they bought. It now happens every few minutes. Will delete it if it doesn't get fixed.