I remember, recommending WPE to several clients. One of them had a blog with heavy traffic but wasn't very much convinced to move over to WPE. I now thank myself for not being pushy.
Promises aren't easy to be kept.

PS: Tomas, I would like you to pay attention to your billing system. It has loopholes, which are definitely not good for your business. I have been watching that for quite some months, even after raising a ticket it wasn't resolved. I kept quiet and didn't wish to talk about it on social platforms. But, it's high time now.