There isn't a single good review for this game on the Steam page. Was there some secret killer flaw that wasn't apparent?
The PC version is really buggy and lacks basic settings options expected in a PC release (like resolution and graphics). Definately feels like an iPad game that got quickly ported. I haven't run into any game breaking bugs myself, though. The gameplay on it's own is pretty fun for a smaller game. Just make sure to play on harder difficulties if you want a challenge,