Hi, I tested the game for about two days in Android and I just created the account to tell that I like it a lot so far.
As a suggestion to improve the game I'd make the buttons a bit bigger, I had some troubles touching exactly in the screen.
Also I'd love to see that you could carry several coffees at once (maybe by buying a tray in the store) or hiring a waiter becouse sometimes it's impossible to attend to all clients.
I know the game is still in develop, so I hope we could see some of this quality life in a future! Otherwise I love the game so far and I hope it goes well for you!