Good place overall. It is VERY centrally located so a few things to be mindful of:
1. The place is a 5th floor walk up. Not a big deal for us, but just be aware
2. The building is on a VERY busy pedestrian-only alley, with a bunch of restaurants and bars (especially 3 Irish/English pubs just around the corner - and with the UEFA games going on the week we stayed it was bad). So it is noisy in the apt. Even with all windows closed it does get loud into the early hours of the morning. Bring your own earplugs ;)
Pros:
- big spacious living room, nice kitchen, great terraces to spend time on
- hosts are good with communications
- great central location, if you don't mind the noise of it all...steps from everything touristic in Madrid
Cons:
- wish the place was cleaned better....there is a layer of dust on some shelves and windows etc
- noise (as specified above)
- the second bedroom is an afterthought...we didn't use it, as it is just the two of us, but its like a little dungeon room for misbehaving kids...very bare
- apt would be better if it was refreshed a bit...stains on furniture etc.