The apartment is in the central part of El Centro, you can easily walk to most attractions in Madrid. We stayed with my 66 year old mother, who doesn't walk much, and she even agreed. The pick up and drop off of the keys was uber easy. The apartment was tidy and roomy enough to spend an evening in if you wanted. We never used the kitchen or dining room but it looked nice. This place is all about location. The street is not accessible by car for the most part (half a block in from Gran via). I didn't realize how close things would be so that was a great benefit. I think it was a very good experience. Our interaction with Michelle was short and good. We are not high touch guests and really only mailed on arrival and departure, the timeliness was spot on.
I am a strong believe in managing expectations and found that with Airbnb it is all about knowing what your getting. The following are not intended to be criticism but as a fellow user would like to know some of the nuances. The street is very lively and you will hear noise if your in the front of the apartment but in no way where the bedrooms are at all. We live near NYC so not scared off by urban life so seeing people party till 2 am, street merchants or a homeless person is reality.. part of Madrid.. you get to see that here. If your renting a car, you won't need it and the traffic laws in the Centro are unique (read about them). Also, perhaps this goes without saying but this is essentially a rental property, you get all the ame ties but it is not the "warmth" of a place someone lives, but it's Madrid and you shouldn't be in doors too long anyway.