I spent a very enjoyable three months in Francesca's 'Lauretta' apartment in Florence. The location is fantastic - walk 20 metres down the road and you can see the Duomo at the end of the street. It's no more than a 10-minute walk to anywhere you might want to visit in the city centre.
The apartment is comfortably furnished with everything you might need for short or long stays. It is also wonderfully light - the living room has windows on two sides and the apartment is on the top floor and south facing.
An added bonus was the fast and reliable internet. In fact, there was a problem with the router when I first arrived, but Francesca sorted it out very quickly. She was always as helpful as possible and every small issue was dealt with immediately.
The only negative was the noise at night, which made it difficult to sleep. This was not at all to do with the apartment itself - by all accounts it is a problem all over the city centre, as the bars stay open late and drinkers noisily make their way home in the early hours. A small price to pay in such a beautiful city.
I am really glad I chose this apartment and would definitely recommend it.