Nicoletta's place is exactly like the pictures. You'll get what you see. Everything was very nice and clean in a quiet area. Check-in went smoothly. You can walk from the train station in about 10 minutes. There is Tram construction going on, but you can still navigate around it with bags with no trouble.
Just an FYI for tours, there are two free tours that start from the front of SMN Church at 1100 and 1400. We did the 1400 and it was great. As good or better than most professional ones I've had. They work for tips. http://www.florencefreetour.com. Also look at Nicoletta's map. Good info there too.