It was an amazing stay in Silvia's appartment.
Her flat is gorgeous and very moderns, right in the centre.
I think less than 10 min walk to Duomo.
It looks exactly like on the pictures and you can actually live there (not just stay for a short holiday break.
The only little issue we has with with time of arrival as we were restricted to arrive at a certain time. Silvia has asked her brother to help with check in, and he insisted on us telling him exactly time when we come, and when we said possibly after 4-5pm - he said it is a bit too late. So we had to shorten our stay in Pisa. That was the only not very pleasant thing. The rest of the stay was amazing