For the first, and with regard to some advice given by users, installation proves somewhat "tricky" to implement, even for an experienced person like me. It actually takes a while before fumbling to reach set this WiFi repeater.
As for its effectiveness, it does its job. I want to clarify that I will use that in a small apartment and on the same floor. Accordingly, the minimum is requested housing and can not predict its effectiveness in more stringent conditions.