we had a great time in this little studio! the location is fantastic, you can find everything you need very close, it's two minutes from Copacabana and a nice beach stroll away from Ipanema. You'll find plenty of restaurants and bars in the neighbourhood, but it's not too noisy in the night so you can have a good sleep too.
we didn't have the chance to meet Guilherme but he was very helpful before and throughout our stay. Absolutely recommend this place!