The apartment is simple but charming, just like in the pictures. It is very well located, two blocks from the nearest metro station and about 4 blocks from the beach in Leblon. The terrace is very pleasant, breezy and open. Internet connection --- which I depended on since I was working --- is fast and reliable.
Alexandre was very flexible and let me check in a couple of hours earlier than the regular check-in time.
One comment I'd make is about the stairs leading from the 6th floor to the penthouse. They are a bit narrow, so people traveling with heavy suitcases or a stroller should take this into consideration.
Overall a very nice place!