Roberto's place is just like what you see in the pictures. The place is like what some of the travellers described: the rooms are arranged in a linear fashion and you have to walk through one room to get to the other. However, two of the rooms have an extra door that you can access/exit via the courtyard or kitchen. This means that you can also enter/exit the room from another way rather than walking from one room to get to the other.
The place is really convenient for travellers going to Florence by train as the train station Firenze SMN is just 5mins away. The place is also near a lot of food places and there is also a supermarket nearby (3-5mins) or you can walk out to the mini mart opposite the place (2-3mins). For travellers who are driving (like we did), there is no free parking available but you can find garages around Roberto's place easily. The nearest one we found was International Garage (28Euros/day) and the next nearest is Garage Europa (24Euros/day).
Roberto's kitchen is also well-equipped if you want to cook during your stay. There is a dish-washer available so there is no need to worry about washing the dishes.
Apart from the place, Roberto and his assistant are really nice people and they deserve a 5-star review. We drove from Geneva to his place and we arrived at about 12.30am and Roberto was waiting for us to check-in (though there was a late check-in charge of 20Euros). Roberto went through the check-in procedure briefly in Italian and his assistant Edi did another briefing with us the next morning in English. Edi will be the one liaising for non-Italian travellers so there is no need to worry about language issues. Roberto even provided us with drinks and wine in the fridge.
The only issues we had during the stay was also handled very well. Firstly, we had a lady friend staying in one of the rooms and she realised that the window curtains are too thin and with the light-on, we can see what is inside the room and it will be a problem if she was changing inside. I contacted Edi about this and the next morning Roberto passed us hand-sewn thicker hand-sewn curtains to solve that issue. Next, Wi-fi was down for a while and I contacted Edi and they solved it very promptly too. Lastly, we ran out of dishwasher soap and trash bags and Roberto brought us new ones the following day.
In short, Roberto's place is perfect for a group of 4-6 travellers who wants to explore Florence city either by train or by car. The place has almost everything you need.