I would like to start out by saying that I'm very impressed and touched by the hospitality and kindness Mario has shown me and my husband while we were in Florence. We took a wrong turn driving to the apartment, arriving a little late. Mario was waiting patiently on the street opposite the apartment - I guess he waited outside to make sure we didn't miss it! The next day, we had to return our rental car at the airport. Mario drove his own car to show us the way there, even helping us when we had to stop by a gas station. Afterwards, Mario brought us to a supermarket near the apartment to get some groceries and dropped us off back at the apartment. He even offered to send us to the airport on the day we left Florence! I thought that was very kind and thoughtful of him and I truly appreciate all his help! Thanks again Mario!! You're the quintessential host, generous, thoughtful and ever considerate of your guests' needs. You've made my stay in Florence a wonderful experience!

Now for the apartment review proper:
It is well located in the quiet suburbs of Florence, about 10-15 mins drive from the airport. There's a big public carpark diagonally across the apartment where you can park for free. The city can be conveniently reached by bus or train as well. Florence Castello train station is less than 5 mins walk away and a 10 min train ride brings you to the Santa Maria Novella train station. There are also 2 buses (about 5-10 mins walk) which will take you into the heart of Florence in half an hour (Mario has helpfully indicated train and bus timetables in the apartment).
Overall the apartment is pleasant and cosy, and comes with air-conditioning. There's ample space to move around and the bed is very comfortable. The kitchen comes well-equipped with utensils and crockery for cooking and there are even condiments and some food! Mario kindly provided drinking water and ice cream in the fridge too! There's also a shelf of books, city maps, tourist information and even the latest guide books on Florence and Tuscany which are very helpful for itinerary planning. Besides these, there were also instructions on washing machine use, and information and a map of amenities in the vicinity. All very useful information provided by Mario!