We loved the quirkiness of this apartment. It is much lighter and roomier than the pictures show. The location was excellent only 10 mins walk in one direction to the leaning tower and 15 in.the other direction the central station.
It is in a very busy part of Pisa with lots of cafes and shops, although no traffic! so it isn't quiet but we felt the location more than made up for this.
The flat is up a fairly steep double flight of stairs and the double bedroom is up steep space saver stairs, this wasn't a problem for us but might be for some.
The living room with the swinging chair was a massive hit with our children as was the little mezzanine balcony above with a sofa and reading light.
This flat is full of character and has everything you need for a short stay in Pisa.
We would definitely recommend it.