Gameplay: 4/5 - Very nice idea! I would have loved to have a score above each client when I yell, just to understand well what happens
Visuals: 4/5 - Nice. Personaly I don't like too much the hyper-pixelized characters, but I have to admit there is a certain style. And certainly a lot of work
Audio: 3/5 - Basic. But at least not stressing. The noise of the yell should be more "impacting" :) You could have made a lot for the ambiance with more sounds, and less abstract (but yes I know : 3 hours!)
Enjoy: 3/5 - Loved the idea, but the playing is a bit simple, and I'm not at ease with the graphics (yes, that's a subjective note)
Theme: 5/5 - Completely! Patience is at the core of the gameplay, not only the introducing story or making me wait for anything.