It was an absolute pleasure to stay with Carlos. He is a very enthusiastic and gracious host. He is very knowledgeable about Santiago and very helpful with advice. The location is very central and you can walk to all major historic/touristic points in Santiago easily. My room was very comfortable and the house nice and clean. Note that at the moment there is a new building being constructed nearby, so if you are sensitive to noise this could be an issue for you. This being said- I slept like a baby. Also note that this building has a doorman and good security (a plus for us solo travellers). Stay with Carlos, he really lives by "mi casa es tu casa"!