Rated 4 out of 5 stars

Congratulations! This new implementation is considerably easier to use than the combination of Lightning and Google Provider that I've been using for many years. One addition I'd very much like to see is the ability to move the view by less than the whole aggregate being viewed: for example, move by a day in a week view, or by a week in a month view.

This review is for a previous version of the add-on (3.0.0). 

I think you're confusing gContactSync with Lightning + Google Provider. This add-on does not support Google Calendar.