The place looks exactly like the pictures posted. It is homey and has loads of character.
She is a wonderful host and can be reached anytime and will come in a few minutes if there's a problem. It's like staying at a friend's house. She even booked our taxi for us to bring us to the train station.
The place is at the heart of Santa Croce. Most places are walking distance - even if we had a 4 year old with us. Uffizi is 5 minutes by walking.
Special mention: the sandwich place All' Antico Vinaio is just 3 minutes away (see trip advisor reviews) and the friendly coffee shop at the corner which roasts its own beans and can prepare breakfast pancakes.