The reality is that not many people have it yet - only those who went directly onto the Megara site and bought one of the versions available there.
There have been problems with the Kickstarter due to the incompetence of Megara (and Mikael Louys) and the company is now in financial difficulties. Therefore none of the KS books have been shipped yet. I'm trying to look at solutions whereby I may be able to help, but it is difficult.
So, all a bit depressing at the moment but I have faith things will sort themselves out. Hence, things quiet with Book Four. But I am confident, once people finally get it, it'll prove worth the hassle and wait!