I give it a 2 stars just for the amount of fun I had initially, but this game was miserable after the first restaurant. It refuses to give 3 stars on levels where you have literally every order perfect unless you make an upgrade. And guess what? the upgrades cost diamonds from level 2 onwards, and they're near impossible to get unless you're super lucky at the casino. Everything is rigged against you unless you spend real money on buying diamonds to get further. Absolutely not worth it.