Graphics are excellent. Coherent and the animations are expressive.
Music is unintrusive, though does get repetitive over time. SFX are fitting and work well.
I figured out the design after the first mistake and then it was smooth sailing from there. The only reason I failed at about $600 is that I keep interacting with the bot when I'm carrying a round-o as opposed to giving it to the customer. In my opinion you made a poor decision putting Roberto this close to the delivery area. I made this mistake as frequently as at least 25% of the deliveries, which robbed me of precious seconds. I suppose one could see this issue as coherent with the fact that Roberto is trying to make you fail, but that's a stretch in my opinion. When I lost due to this issue, on my first run, I decided this issue was going to impact me more in the future and therefore I stopped playing.
Solid entry all in all, but design too easy to master, from my perspective.