I traveled with a group of 7 other friends and we all had a great stay at Gilda's apartment in Copacabana. The location was excellent, close the beach an lots of food options from fast food to nicer dining. The apartment is spacious and had everything we needed for a comfortable stay.
I didn't have a chance to meet Gilda or her assistant Heloisa, but the process of reserving the apartment, checking in and out were all quite easy. Any questions we had during our stay were quickly answered.
Would definitely recommend this apartment for a larger family or a group of close friends.