Good to be close to Grand Hyatt for shuttle to conference. Bad if you want to walk to grocery store or to restaurants (except for the Hyatt, which had good food), or do any tourist travel. Copacabana, Ipanema, Santa Teresa 45 minutes and expensive Uber away.
There is a beach across the street, which was nice when I could escape from the conference for a walk
The place was mostly clean, except The couch pillows smelled like dog. The kitchen needs a few things to be functional, like a cutting board, a tea kettle, a larger skillet, coffee maker, for example. Felt more like unwanted leftovers in the kitchen than something that could be useful.
Only was able to take a hot shower once, during my 5-day stay, and only if I turned the water off and on every minute.
Overall, functional, but meh.