Rated 3 out of 5 stars

OK, since any answer comes from the dev I give my contribution for this question.
I've made extensive tests using both native remote calendar subscription and this extension.
The main difference (but not the only) I found, and it's fundamental, is that native subscription access the Google Calendar in read only mode, while the extension gives full write access.
It seems to works quite well

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As in title. Why would we have to prefer this addon instead of subscribing natively remote calendar with Lightning?
I think a clarification would be welcome

This review is for a previous version of the add-on (0.5.1).