Achei muito dificil o uso!
Absolutely not user friendly.
It feels like something is missing. when a user signs up for the newsletter on the [mailpress] page, they do not get any option to select categories etc. Would rate as a 5 if it all worked.
Plugin seems the best newsletter plugin for email, but without documentation is useless.
The Wiki is down since more than 4 months. How can such a complex plugin be useful without any documentation?