Rated 3 out of 5 stars
Overall I really like this add-on. Mybiggest concern is with the current lack of support off-line, in which case I have to agree with other posts, it renders lightning pretty much useless. Looking forward to the word being done in this area.
While I do like the way the calendar currently handles I do continue to have problems with tasks that appear to be related to the google add-on. Hopefully these will be resolved otherwise I would have given it four stars.