Pros:
1. The location is good.
Next to the Metro Station. Only 1 minutes walk. Andrea will give you a very clear way to check in.
2. You don't use a key to enter the room, you receive a code of the room, so you can check in any time.
3. The room and bathroom is clean.
4. There are supermarket, restaurant nearby, you can go to a big shopping mall within 15 minute walk.
5. There has drinking water machine in every floors, you can get the hot and cold water.
6. The price is economic, it is worth to stay in Andrea house
7. Andrea is very nice host, you can ask any question to her and she has a very quick response! :)
Cons:
1. There is no kitchen but a microwave.
You can't cook in the house.
2. There is no air-conditioner in the room.
You need to open the window to sleep.
(It is a little bit hot in the night)
But it is a good place to stay in Madrid. :)