Event Aggregator from a Feed – overwriting and notificaitons?

Wanting to use a Feed from KAMAR calendar to sync with public website calendar.

If items are scheduled to import – how do they affect items that already exist with information that has been modified? For example, with KAMAR an event may have the Title, Location, From and To Dates and Times, and possibly Details (Description). Once in the website calendar, if the Title or Description is altered, will that information be overwritten if a scheduled import recognises a change in KAMAR to an event date and re-imports? Note that the website event item may have images and rich text editing applied or added.

Or will only the altered information be updated i.e. Date?

Or will it import it as a new item?

Will the scheduled import automatically import any new items?

Will the scheduled import recognise if an event has been deleted from KAMAR (the Feed) and remove from the website?

The website calendar also has more items than the Feed, for example, Event Categories i.e. “Sport”. Featured Image, Location that is a venue with google map address, Event Cost etc. How are these handled?