I just finished the game and I enjoyed it a lot. The gameplay loop is solid and the sense of progression is well done.
I just found that trying to give an item to a specific coworker (voucher, sandwich) can be tricky if you are unlucky (it took me 5min of non stop day skipping), so I would suggest to add the possibility to visit them like with Lilly.
Also the fortune teller has limited use for now, I don't know what is planned for her but using her to give hints toward the ingredients of the perfect sandwhich would be a nice addition.