Game is amazing. I love this game because it has lessons on how to save and invest money. I haven't purchase VIP status but I was able to buy 2 new machines during the 70%. Also watching adds from the tv and joining festivals are helpful to get diamonds. Upgrading the interior design of the cafe increases tips. The trick is customers pay more for tips than orders (you can check the receipt and you'll see a huge difference). Just make sure invest small and wait for ROI then you can upgrade bigger