Piero & Paola's place is unique in all of Rio, if not the world! It is a bi-level rooftop penthouse (floors 22-23) with two balconies and a private rooftop swimming pool in a residential area on a small hill midway between Copacabana and Ipanema beaches (~1km to both). It is literally the highest housing unit in the entire area, looking over all other rooftops in those neighborhoods, and across from the ~500' high western face of Arpoador Rock. Both the Christ Redeemer statue and the summit of Sugar Loaf mountain are visible from the balconies. The entrance is by elevator and up stairs through the family home on level 21. The hosts are very friendly, multi-lingual, and were helpful with directions and taxis.
We stayed 4 nights during the hot summer and enjoyed watching beautiful sunsets and rock climbers on Arpoador in the evenings (even at night with head lamps). A storm with strong winds and rain one night required us to "batten down the hatches" in the chalet bedroom (also the only area with AC). Even with my limited mobility, I was able to get around the place OK thanks to the stair railings. If you are looking for traditional, hotel-type accommodations, this place might not be for you. However, if you don't mind walking a bit or taking cabs, this special place offers unparalleled views, lifetime memories, and amazing value. Wonderful!