Angela's house is in a perfect location: within walking distance from SMN train station, the Duomo and all other main attractions. There are also lots of nice restaurants nearby, as well as bus stops and bike rental. The steps to her house (3rd floor) are quite steep, so it would be better if you don't have heavy luggage. The room is a bit hot during the day, but at night it is alright and there is air-con as well. Otherwise, the house is clean, and decorated with many nice paintings.
Angela is a friendly and nice host. She was really helpful and gave us a lot of advice on what to do and where to go, especially the off the beaten track activities. She is knowledgeable, especially in arts and architecture, and apparently has a deep affection to Firenze, so it was really interesting talking to her.