I had an amazing stay at Lucia's, she's been the best Airbnb host I've had since I'm in Brazil! She is like a mum, makes you feel really comfortable but at the same time gives you your space. From the moment I arrived I felt "at home", her house is really nice and situated in a great neighborhood between Lagoa & Jardim Botanico. There's the city bike station 50m from there, restaurants, shops are all within walking distance and the lake is pretty much at your door.
There's a few amenities including the use of the kitchen, coffee, washing machine which makes the stay enjoyable.
The only downsides I would point out is that the house is situated quite close to a main street and the room is facing that street so during peak hours you can hear the traffic a bit especially if you've got the windows open for the light sleepers. There's a mounted fan but I would suggest to get a portable one as well on hot days especially if you like to sleep in. The rest of the apartment remains fresh.