We looked at it a little bit in preparation for our upgrade - mostly things like search terms, are catalog filters being used, where are our users coming from to get into our site, landing pages, explorations. We didn't have a lot of time to spend on it and it was a bit hit and miss whether we got the information we needed.

I think there are some useful insights if we can take some time to make things work for us.

I did run into a few blockers - for example, how to remove admin actions from our site which could inflate numbers artificially.