First of all, I love it <3 Thank you for the day widget - I was looking for it for so long. There are a few missing parts, but these are minor ones - like, I have multiple calendars connected and I'd like to select only those which I'm interested in. When using Fantastical, I want to inspect all calendars of the company, like bizdev / clients, but on touchbar I want to have notifications / calendar events only from my calendar and my team's calendar.
Moreover, I think there could be one massive UX improvement to the calendar widget - when you enter the day view, you get a horizontal scrolling area. However, the buttons to go back to month view scroll as well. It would be much, much bettwer if they will stick on the left side - the same way as they do in the month view.