It's literally behind the Pisa Tower, so the location is really good. The staff is nice and helpful. The beds are comfortable and the rooms are cool. The only problem is the bathroom, they only have 2 showers for every room and you need to wait a lot to get your turn.
Also the information that is on the papers and walls it not correct.. So it's a little bit confusing! (but nothing special)
It's a good place to stay! I recommend it!