This apartment could be great. Location is good in Malasana and an easy walk into central Madrid. The layout worked well for a family.
But it is VERY tired. Electrics are dangerous. Old yellowed sockets, some with loose front plates that fell off and old/unsafe looking electric heaters with burn marks etc. I've always assumed AirBnB would require an electrical safety certificate from owners but clearly not!
The apartment also needs a deep clean. Dust/dirt in corners and crevices. We also found a used cotton bud in the wardrobe: Yuk! Splashes/stains on chipped and peeling woodwork. The kitchen was pretty grimy in places, especially around the windows. The shower area needs scrubbing with bleach to remove the black mould and the silicon needs removing and renewing. It's all fix-able.
Andres replied to messages quickly in a friendly manner but did nothing tangible with our feedback (given at the start of our stay with photos). I would have at least sent a cleaner round straight away!