clicking on a day should still open the day-window with all appointments and not immediately open an edit-window!! Not good!!
leave the funtion of calling the day window as it was, but the clarity of the new calender design is good.
Zara Piles commented
No need for clicking the 'edit' button every time you open a calendar appointment. If a calendar appointment is opened, I think it's safe to say it's because it needs to be edited? It just adds an extra step, and I update a high volume of calendar appointments every day, so this adds up to a lot of extra clicks!