"Nothing too new or interesting" kinda describes this game perfectly. It's pretty bare-bones in terms of a job management/servicing sim. There's no reason to buy more designs or pot styles because they ONLY add more things you have to juggle in your mind. It's like paying for more mistakes with no money or point incentives. I also didn't see much of a point in most of the upgrades to the store, as they did so little to alter time that I didn't even know if they were doing anything. It's good for challenging yourself, but you can get pretty far without anything from the store.