A great option for the no frills traveller for sure.
On arrival we accepted (and I recommend you do too) Alex the driver to pick you up at the airport as just jumping into a random cab if you don't speak the language/don't know your way around. His fee is about double what you'd pay in a cab but to avoid any stress/hassle, worth it. After our time there we felt we knew our way around enough, we elected to take a normal cab back and it only cost 60 Reals.
Upon arrival at the Apt we were met by Sra Rose - a lovely woman with a plethora of knowledge about the local area. She was extremely helpful having a locksmith show up immediately due to the front door lock not working, she fixed one of the AC units and also provided a plunger to sort out the main bathroom in the toilet - remember Brazilian toilets don't like paper so head this warning if you don't want to have to clean up a mess :)
The place is very safe in spite of some folks' comments about the favela across the street - if you leave the locals alone, other than an occasional pan handler asking for spare change, you shouldn't have any issues.
The location is ideal if you want to use it as a hub for everything Rio has to offer. 2 of the bedrooms have large beds (a queen and a king I believe), the 3rd has 2 double bunk beds which was pretty cool, and the 4th bedroom is the maids quarters with two single bunk beds and has an adjacent toilet in the shower.
In short, the place is in a great location, plenty of good food spots near by and very comfortable.
I would definitely stay here again not only for the apt but for the efficiency of Pierre getting back to me promptly whenever I had questions, and Sra Rosa being so attentive and helpful.
Obrigado Pierre e Sra Rose!