Absolutely, @Robby11, I don't see any improvements. These are changes for the sake of change, and the calendar is worse, not better.
Here's a prime example of how it was very useful to be able to add notes to guests' reservation slots on the calendar. Just minutes ago one of our guests, a group of four, asked if he could extend a one-night stay to two days for only two members of the group.
It's done...but now I have to refer back to the message thread to find a useful reference to that change, write it down on paper and pin it on the wall, or commit it to my own computer-like (NOT) memory. It should be on the calendar.
I had a lot of notes like that on our calendar until we were surprised by this "upgrade", and then they were all wiped out overnight.