Perfect score in my book! The phone is a great touch. I found myself thinking more than once, "ugh, another customer -- can I just ignore it and keep fishing?"
I thought at first the game would be boring and too easy, but when I started messing with the phone I started to forget orders. This is hilarious and realistic - I got the feeling of what it would really be like to run a shop, which is exactly what you want a game like this to do. Fabulous job, really.