It's a solid enough demo.
There's a problem where if you put more than one dirty dish in the sink, the game will "forget" the previous one and you can't clean it, thus losing a dish for the day.
Nitpicks:
if you take meat off, the stove, you lose your progress on the bar and have to wait the entire duration again. This didn't seem to be that case with other ingredients though.
You can move away while chopping and temporarily freeze the bar, interacting again continues the task.
Getting rid of furniture has no kind of sale/refund so I got rid of a countertop lost valuable space :')
I suggest adding faster walking/turning to the upgrades, I found moving to be more frustrating than chopping/cleaning quickly.
Also there's no indication what I'm facing or close enough to interact with, some kind of highlighting/arrow would be nice. Maybe a way to tell what ingredients are in a burger so far.
The lack of music during gameplay is kind of jarring.
I accidently gave a customer two patties in his burg and he refused to eat it. Picky guy