I checked this plugin and have nice feature but have very serious bug that i found earlier before i add my 100's events.
I export the event .ics file. All events are in my .ics file so i check how import features work. SO again i delete all my events, Category and venues from admin. And after that i import the exported .ics file.
Event are add :)
Venues add :)
Categories not created :(
Event have venues which in unlinked mean when i click on my event title
the Venue : meta box is empty and its not link to venue that i added in venue section.
Its possible to upload CSV file for import events.