The house of Pietro is a very nice villa - looking exactly as it is presented on the pictures in the offer. The house is big (we were there as a couple and rented 1 bedroom, but could see there are more rooms) and very well-equiped. It has a very interesting style, one can find lots of accesories, souvenirs and gadgets. There were also helpfull things in the kitchen (sugar, salt, spices, oil, vinegar, etc. - it is not so obvious in other offers!). We were impressed with how clean it was, especially taking into account how many small details are there to be kept clean. The space around the house is nice, also very well-kept. There is a separate grill and laundry place in the corner - very usefull!
I would say the bathroom is relatively small (it was ok for us as a couple, but if there would be more people it could be crowdy).
Also, we did not have an internet in the house (it is said in the offer that you should ask in advance for it, you should also pay additional fee) - I know there is an information about it, but I consider it a disadvantage anyway.
And the last, but important, thing is the location - the house itself is a really good place BUT Tre Fontane is not... I am aware we were there out of season and it was totally empty and closed because of that, but it was also dirty and destroyed (even with lots of people in high season this still won't be a nice town).
Anyway, we enjoyed the stay. Thank you, Pietro!