A wonderful place!! Just a couple blocks from the amazing beach of Ipanema. (Get up early or go at sunset for the best light.) Short walks to the gorgeous Lagoa and Copacabana beach, too. There are all the amenities within a very short walk (most within one block): grocery stores, metro, taxis, cafes, restaurants casual and fancier, shopping, banks, yoga, and even markets in the plaza on certain days. Easy transit to all the tourist sites.
Beds were comfortable, as was the couch. Great pressure on the shower. The air conditioning was efficient and doors allow you to close off certain areas you want to cool quickly. I was there in the less hot months, so I enjoyed the breeze from the windows. The A/C was also nice when the futbol fans were cheering at the bar downstairs (only happened a few times during my stay).
Simple modern decor. The views from the window are lovely, and bright light comes in through the big windows. (Blackout blinds in the bedrooms were great when I didn't want to be woken up early. Normal blinds in the common room helped didn't want the heat from the sun.)
Fast internet was great for my work trip. The office area was ideal for that, too.
The kitchen supplies are basic, but certainly good enough for cooking simple meals.
The washing machine was easy to use and my clothes dried quickly on the ample hanging racks.
The doormen were friendly and helpful when I didn't know where to wash my feet after the beach (in the garage downstairs) or where to get a good taxi (just down the block on the corner).
As you would in any big city, watch your bag as you walk around. Know where you're heading since there is a favela nearby. I never felt unsafe, but it's just good to be careful.