AppConfig Analytics and Statistics for 2016/17

Hello,

Do you know any analytics and statistics about AppConfig usage? H
ow many users are there, how do they use it, may be interviews and so on?

I just see some mentions here, but they any not about how it already works and so on:

https://www.gartner.com/doc/3305817/appconfig-reaffirms-correct-method-mobile

Even the annual reports just sells the solution, but does not report how it feels inside:

Thank You in advance!
Petr