This isn't going to go into sticky points of the service, as I think that would need a lot more context, I think one of the most interesting stats is that only 27% of traffic was on desktop, this is really good information to help shape testing strategy as a service moves to public beta.
These stats are from Mar 17, 2016 - Aug 24, 2016
Total users: 16,114
Page views: 114,134
Bounce rate: 21.40%