Great stay at Jùlia's. Jùlia was very welcoming and gave us a lot of good tips on where to go and what to do. The apartment is great. Wifi worked perfectly. The tub with Jacuzzi is really nice and the bed is comfortable. Location is good, you are 15/20min walk to the center of Madrid, we use public bikes, available right around the corner and that allowed us to smoothly go around the city. It is a basement apartment so you might not have a lot of natural light if that's something that you need. Yet it is still a very bright place.