Rated 5 out of 5 stars

At a first glance it looks promising. I have still one issue with it, I'm not able how to subscribe to a folder of another user? This should work imho out of the box but unfortunately I'm not able to see the calendar of the other user. Any suggestions how to fix that/improve that? Furthermore, I'm still missing a docu page of the extension. If I'm able to fix this small issue I would by a licence for sure.

Best regards
Niko

This review is for a previous version of the add-on (0.7.8.5). 

Hi Niko,

I'm happy that you like our addon. We've put a lot of work in it, and it's nice to see that you like it.

As for shared folders, you can configure the shared folder in Outlook Web Access in your browser. Then, after you restart Thunderbird, the same shared folders should appear in Thunderbird.

As for shared calendars, we don't support them yet. It's on our list of planned features, but I can't tell you when we'll be able to do to it.