We really enjoyed our stay here. Communication with Mathilde was easy and smooth, and her friend Javi, who met us to give us the key, had great suggestions for areas and places to check out. The flat is located in a central area of Madrid and while the area is busy, it adds character. The flat itself was very clean, including the washer, and though there was no AC, I didn't find it too hot or uncomfortable at all. The internet was stable and fast, in case you need to get work done. There is a very small lift (just big enough for two people) that you can take instead of the stairs to the flat. Buses were located about a five minute walk away and there is a 24 hour store nearby, as well as plenty of cafes and restaurants.