"This was my first time in Brazil. My first surprise at the hotel was the slow checkin. One has to do a government-required security form online first, but even after that the staff seem to take an age typing in their computers to get one checked in.
The front-desk staff were helpful when I interacted with them as were the bell staff, the pool staff, and the maitre d' at the restaurant. But most of the other staff didn't speak English (very much or at all).
I had pre-paid, and they forgot to scan a credit card for incidentals, so I ended up struggling to charge to my room one day, talking to a waiter who I couldn't communicate with. That was resolved by a nice manager later.
The pool on the 17th floor is very nice with a fantastic view. But I did my swimming in the sea. The hotel provides a special card allowing you to get a towel, leaving the ticket as a deposit. You get it back and drop off when you check out.
The biggest problem in the hotel is ventilation: I have a CO2 monitor and found the levels in most of the hotel were way too high (indicating they are recirculating the air). In my room it would get above 1000 ppm (600-800 would be good in other hotels). I did open the window some of the time to resolve this, but there was also high particulate pollution ouside! In meeting rooms of the conference centre part of the hotel, the C02 got above 2200 at times, which makes people start to have trouble concentrating ... not a good thing when you are in meetings all day!"