Its very cute to see.
I also have a canteen area and changing rooms etc on the floor below and an office on the ground floor.
They sell the robots from crates in the back yard. In my head they are "selling off the back of a truck" and the money is going in the foreman's pocket (he is the owner, but I had to do that to get it to go in his funds).
What is annoying is the PCs in the "office". I want my sims to get paid for working at the PC and it be a job. I can't find a mod for that though. As a result they are real PC's and customers keep using them.
Yeah, the computer thing is rather sucky. Maybe someone should design some special employee-only PC where they make money for the company. Something like the "give financial advise" interaction