Wow Wow Wow!
What a fantastic place to spend our time in Madrid!
The apartment is very well situated off Calle Atocha, and is an easy 15-20 minute walk to most of the sites in Madrid (Plaza Mayor, Gran Via, etc)
The area felt very safe at night (we walked home from the casino at 430 AM and were not concerned about our safety.
The apartment has great AC and heating.
Beds are a little harder than we were used to, but after being out all day we welcomed a nice and warm bed.
Bathrooms are nice, showers are nice and water pressure/temperature stays steady throughout shower.
Kitchen had lots of utensils available (we drank a lot of wine and ate a lot of jamon)
Check in and out was easy, they use a 3rd party service so we were met by Cesar and walked through the unit.
The only issues we had with the unit (and they were so minor, but I should note it) is that they asked us to throw out our trash, but the trash room was locked and the front door key did not open the door. We ended up throwing it out on the street.
Also, the hallways have lights controlled by motion. If you are returning at night, it can be a bit strange to walk into a dark hallway waiting for the light to come on. Every night we would be trying to put the key in, and the hallway light would turn off. If they would just extend it by an extra 15-20 seconds, it would for sure help!
Pro tip: Go to the Mercado de San Miguel just off Plaza Mayor for a meal, or two or three! It's a very lively food market, with great prices and delicious tapas style food. Also, if you are looking to drink craft beer, go out of the front door, make a left, up to Calle Atocha, make another left, go down a half block and make a left down the alleyway. There is a small stall serving beer, wine, chips and olives. Beer prices were VERY reasonable, and the owner a great conversationalist.