This is the most promising of the cooking games, but it's far too hard to upgrade and to collect gems. I played 100,00 coins on the slot machine and only got gems once (and of course, the slot machine isn't authentic and isn't random, meaning the lack of ability to proceed with the needed gems is impossible unless you pay). And ads, a method of money making for many games, only allow you to get coins not gems, so they're a waste of time. I'm disappointed to be uninstalling, but I am.