We stayed for a few days in one of Sandra and Milan's flats. The flat was cute, clean and is equipped with everything you need. It is very centrally located, you only need a few minutes to the metro station and about half an hour walk to the city centre.
Sandra and Milan were very friendly, and gave us all the important information quickly. We were able to arrive one day later than planned and this was easily arranged with Sandra and Milan.
One small negative point: we also expected a different flat, as there were more pictures of the other flat in the photos, but the misunderstanding was not so bad - we felt comfortable and had a great time in Prague :)