Absolutely an amazing experience! Location is perfect because it is walking distance from Atoche Station and a few feet from the Anton Martin subway stop. You can walk to the city center and all the must see tourist attractions in Madrid.
The host was great with communication and lays out detailed directions for you.
Clean and modern apartment with A/C.
My only problem was that the Wifi was spotty. I had to visit cafes to use the internet. Luckily the host provides maps for you to travel with because I would have been lost without it.
Overaly great stay and I highly recommend it.