WP calendar features no advanced configurations: default month, week view; default reminder time (its aways 15mins)
It takes just too many clicks to do trivial stuff
MS should study other OS's calendars and learn.
Jose Madriz commented
Calendar should have natural voice commands, "Remind me to get out of the building at 6 o clock"
Évent should be linked with a contact of people hub. From the contact we should have a menu "make a niew évent with..." so that it comes also in contact history.
I'd like to have a search engine in calendar to browse all past appointment I Have had concerning a subject or with a particular place.