My experience was totally great!! The apt is so well located that is almost 10 mins walk of Santa Croce, Piazza della Signoria (Palazzo Vecchio museum), Uffizi gallery, Piazza del Duomo, and the best thing is that it is located in a quite street (keeping in mind that it is in the main touristic area).
Guido's apartment is just as you can see in the pictures. It has all you need to feel like home. Florence is wonderful so Guido's apartment!!!!