We were a group of 8 people (who occupied 8 rooms) and stayed in the flat for 3 nights. The flat is huge and most of the rooms are generous. Some come with private bathroom and there's a shared one. The kitchen had all amenities like dish washer, micro wave, oven, coffee machine (filter and mocca). It's a rather old flat with high ceiling and a simply gorgeous floor! There are too dining / living rooms, one leading to the rather busy main street and the other (our preferred) leading to the much quieter courtyard (with a nice terrace). There is no air conditioning, but the atriums helped to keep a rather comfortable temperature. The flat can be accessed by an funny old lift or by taking the steps (which we preferred most of the time).
While the flat looks nice, especially the floor and the high ceiling, it did not receive the renovation we felt it would have deserved. The kitchen furniture is old and not of the best quality and the bathrooms probably were nicer before somebody just painted on top of the tiles (how could they!). It feels like the budget was tight really. But from a functional level there's nothing to complain, everything worked fine. But we have expected a higher standard, also in terms of cleanliness. While the beds were clean and there definitely was a cleaning service, it felt like superficial: the hidden corners, some areas in the kitchen, parts of the floor were sticky – we have not felt comfortable walking around bare feet and socks would get dirty.
We also have had an issue with the internet (it was crazy slow and very unstable), it was also where Juanjo, the host, really shined: he's answered all messages quickly and really tried to help. The connection got better but stayed unstable. We've ended up buying a tourist SIM card (Vodafone 4g, 15 euro for 5 gb, and you have muuuuch better internet) because we did some work from the flat and relied on internet. Still I've appreciated his help and our communication. It's also why I don't like to take away a star, because Juanjo was really very nice from the beginning to the end. We have been received very well and always precisely on time (not a matter of course in Spain).