It is an attractive flat 1.2 km from the Prado and the photos are accurate-very modern bath and kitchen. The host was quick with all communication.
Two things to consider - lack of storage. Each bedroom has a rack with 8 hangers but there is no dresser or closet. You have to live out of your suitcase. No problem for us - we stored our things in one bedroom and slept in the other, but it could be tough for more than two people, as one bedroom doesn't even have floor space for a suitcase. There are no cupboards or shelves in the kitchen for food either.
Despite what the listing says, the "free parking" is IF you find a space on the street it is free from 9pm til 8am. Realistically, you must pay €15 per day at a nearby garage.
FYI- all windows have frosted glass and look out on an air shaft. I don't mind that because we mostly just sleep and shower there.
If you are arriving by train, it's a great location, and about a 10 minute walk to 2 subway lines.