Great location and wonderful host. Rutilio was very timely in his responses and was ready for us upon check in. The place is just as described. A couple helpful insights...
1. There is no elevator and it's on the 4th (5th in America) floor. Great exercise!
2. The location is the center of nightlife which doesn't end until about 6 am. I wouldn't recommend taking young kids.
3. The last thing is the apartment doesn't really have windows you can open up to get fresh air. The air conditioner works fantastically, but sometimes you want a little fresh air.
Otherwise, an all around wonderful stay in a wonderful flat in a wonderful city.