Good location, nice staff (waiting for our arrival till 10 pm :)), rich breakfast. We would absolutely recommend La Ventana! :)
The location of Roma Vaticano is good,like 20 mins walking to the Saint Peters Square, the flat was beautiful with 5 bedrooms and 2 bathrooms (separate for men and women). The breakfasts were only sweet but not bad. The women bathroom was not very clean (only in the morning) which was probably not the problem of the stuff but of the flatmates. The internet was very often not working. Our room was very nice, large bed, tv, aircon, two sofas and a table with two chairs.
The location of Siena Hostel is not very good, it is quite far from the center, on the other hand, very close to a bus stop that we used to go to Florence. The room was nice, but there was only one plug in the whole room. Bathroom was clean, two toilets and 1 shower enclosure (the same for mens toilet) for the whole floor (ten rooms), internet was fast. As for the breakfast, there were only sweet things (usual for Tuscany) but a perfect coffee machine with delicious kinds of coffee :)
The location of La Torre is quite complicated to rate, because it was really near to all the historical sites, on the other hand, we came by car which was not very lucky,because we had to park about 15 mins from BB behind the medieval wall. And we always got lost even we had a map :) The room was nice but quite small,the bathrooms were not very clean and smelled bad and were not very private (the door could not be closed properly). On the other hand,the breakfasts were very rich and tasty!
It was just perfect to stay in Ponte per Venezia!Gabrielle,the owner of the house,was amazing,she always brought us to and from the railway station to Venice by her car,she made very rich and tasty breakfasts(in the evening she asked us what we would like to eat in the morning and she prepared it for us).Moreover,she always gave us a large snack before we left the house(icy water,biscuits,sandwiches,fruit).The house is also gorgeous,with beautiful furniture & pictures, large and clean bathroom).