Ernesto is a host I would recommend. We felt really welcome and he was always there to help if we needed something. Besides that, Ernesto is staying elsewhere. You have the privacy of the room in the shared appartment with another room. We found the appartment very neat and clean (exactly like the pictures!) and in between the fair and the city centre. In the near future however, it wouldn't harm to change the mattresses which have had their best time.
I would be happy to visit the appartment again in the future!