I lived in this house for two months.
The two Frans are very kind and helpful hosts, always ready to give advices or chat, but first of all to me they have been good friends. The place in general is a bit small, but cozy, quiet and provided with everything you might need. It is in one of the best neighborhoods of the city, ideal if you are looking for a measure of peace to rest and then jump into the bustling life of Madrid.
In any case, the description provided is reliable and true to reality.
If I ever return to Madrid one day, I would definitely consider this accommodation again.