This was a great idea with great voice acting! I know it's been mentioned, but not having a way to relisten to an order makes a cozy game turn into a stressful memory and hearing test. Especially since the the audio seemed to have an odd mixing/leveling so some of the voices seem too quite or a bit muddy to completely follow. Making not having the reminder for order even more stressful lol.
The main gameplay played very well in itself. Using the espresso machine, selecting the cups and delivering them to the register all worked well. I personally enjoy using a gamepad over keyboard controls so having a option between both would have been great. I also believe the ctrl key for discarding was a bit out o place. Just a very minor nitpick there though.
Overall, fantastic voice acting with solid enough gameplay. More polish and more mechanics could be a full release type of game. Especially if you did add the chit chat function with customers.
Possible Bug Report:
also not sure if this was a bug or not, but towards the end of my play session it sounded like a customer came in but I switched over to the espresso machine and no order was given and nothing was happening. I would have restarted but the intro is a bit of a time sink to make it back through. So I never got to the second day or got to make food. (Not sure if that was actually implemented or not.)