The apartment is perfectly located around all main places and museums, also super easy to find. Three minutes walking to Galileo Museum, Uffizi Gallery, Ponte Vecchio and the Duomo. My husband and I were able to find nice places around to eat and even found a pub to watch a Brazil soccer game that was on!
About the apartment: it was our small home away from home. It's fully equipped in case you want to cook or do your laundry, also Guido left a Florence guide that we used during our stay. As we were tired from the super active week, it was the perfect place for us, we loved it! We stayed there one night, cooked our dinner and relaxed, really good. It also has a television that we turned on for the fun of trying to understand Italian news. :) The fact that it's located in an ancient tower makes it even more amazing. It's located on the 3rd floor, and it doesn't have an elevator, so you if you are carrying a heavy bag (like I was) be prepared for some team work. :)
About the host: Guido wasn't around when we got there but he left clear instructions prior our arrival about the facilities and where to get the keys. He also was kind enough to book us a taxi for the day we left, as it would be super early. We forgot one poster there in the morning rush when we left, and when asked if he could mail us that, he didn't hesitate doing so.
I definitely recommend this apartment for anyone, and I'll surely return when in Florence again!