Rated 5 out of 5 stars

Not having had much experience linking Thunderbird + Lightning + Google Calendar I have to say that the Provider process streamlines the setup making it much simpler and more intuitive. I am happy to report that in the 30 minutes since I began using Provider I have not encountered any problems that could not be solved by RTFM!

This review is for a previous version of the add-on (3.1).