I tested the Calendar Sharing option with a customer and they came back to me with following comment:
"It works, but it's not a good solution, because you hardly can't differentiate between the own appointments and these of the reps. The striping is nearly not visible ... Is it possible to change the color of the reps into sth. with much more contrast?"
I tested it by myself and I would agree to the comment. Is there any possibility to configure it or is any update planned in future?