This place is GREAT and you cannot beat the price! My wife and I stayed for three nights and really enjoyed the apartment. The location is key. You are walking distance to theatre, shopping, metros and TONS of cafes. The apartment is spacious, chic and very, very comfortable. In an earlier review, someone mentioned that they felt the neighborhood was unsafe. We did not find this to be the case. It certainly gets lively later than when most people may be used to (10 PM) but that's Spain. There is a small plaza about half a block from the apartment where the locals hang out. At no time did we feel unsafe, day or night, and would definitely stay there with our children any time. In fact, during our first night we had difficulty with the door and one of the locals helped us out.
Two things of which to be aware and they are both relatively MINOR:
1. The number on the apartment is different than the address listed. It's fairly easy to figure out, especially once you are aware of it, but got confusing for us because of point number 2 below:
2. The key for the door into the building was really tricky. You have to pull the door a certain way and lift the handle a certain way and turn the key a certain way, etc. My wife and I discovered this late our first night when returning from dinner and could not get into the building. Combined with different number on the door, we were confused and thought maybe we were somehow on the wrong street even though everything looked familiar. We were finally able to get in when one of the residents entered the building and we snuck in behind him. The next day, the office was VERY responsive and came out and, likewise, had difficulty with the key and together we figured out how to finesse open the door. They later brought by chocolates and wine for our troubles.
The office seemed to think it was the lock itself; however, I think it may be using a copy of a copy of a copy of a copy of a master key that is making it tricky. Regardless, we only had trouble that one time and were able to get in and out fairly easily after that.
Again, this was a relatively minor annoyance and, given how responsive the office was before and during our visit, I'm sure they are already addressing it. Still, it's worth asking about before arriving.
Overall, this may be our favorite Airbnb home. When next we find ourselves in Madrid, I would not hesitate to book this unit again.