Our stay at Mauricio's was good, he is an extremely friendly person and worries about you're having a good time.
Location is just perfect, right in front of the beach and walkable to Copacabana, Botafogo and some other good areas.
The only disadvantage is that the apartment is very old, smells old in the bedroom, in the bathroom and common areas, if you're ok with that, then you'll have an amazing time at Mauricio's.