Sasa was a very nice host. It was no problem when we arrived about an hour later, he was there immediately to let us in and explain us everything. Also the checkout was very relaxed as we didn't have a fixed time we had to leave.
The flat is beautiful, it is just as shown in the pictures and only two minutes walking to the river. Also the center and Charles Bridge is not far away.
I can recommend Sasa's flat to everyone who wants to visit Praha!