I had fun! I liked the upgrade system and the use of dice placement. However, the strict requirements on what die is needed for what category kind of limit what you can actually do with a given "day". Some rolls are just a heck of a lot more useful than others. I had to throw out a lot of 5s and 3s.
A dice placement game works best when you have a lot of competing priorities so there's competition for a given roll. I would have liked to see a mechanic for rerolling or modifying rolls (perhaps combining 2 dice into 1 roll, or discarding 2 dice to get a new roll, etc.)
I also would've liked a way to fast-forward the days. There's a lot of downtime while customers mill about the store.
Finally (and I'm a little loathe to say this) but there needs to be some kind of problem nipping at my heels, like rent or ingredient purchasing. Without something to drain my funds, a good day isn't very distinguishable from a bad one.
Still, all that said, it was very enjoyable. You've got a strong foundation here for a more fleshed-out game.