Fabulous place!
Leticia and Martin were awesome hosts, you will have all the privacy but they are always easily reachable if anything is needed.
The house is located in very secure / closed condominium and close to Joatinga beach, the private swimming pool is perfect.
For trips to the centre / Barra beach i'd recommend having own car (/ using very cheap uber) as it's bit far from Metro, shops etc (it didn't bother us).
After 1 weeks stay we booked another few nights when we got back to Rio and will definitely be staying here again next time we go to Rio.
I would very highly recommend it to anyone looking for a quiet remote working place in Rio for a month or two :-)