Just like any other cooking game, not enough rewards and very expensive upgrades. Not to talk of less time and more dishes as u progress, very stingy boosters. Buy everything with real money. And top of it when u manage to upgrade then u have to watch 2 ads for it to reach u or spend gems (not just coins) to be able to use instantly. Money earned in one level or shops disappears in the next level or shop. So start from scratch and it keeps becoming more and more difficult. Uninstalling.