Had a great stay at Ariel's place in Madrid. His apartment is in a great location (few meters from Gran Via station and close to all major spots in central Madrid). It is a comfortable and tidy room right next to the front door and to the shared bathroom, what makes it proper even for those more afraid of losing personal space. That's not my case, so I could have some great conversations with Ariel, who I consider to be a great guy: respectiful, intelligent and very friendly. Also he helped a lot giving me tips about the city and the neighbourhood (even made me a map with the main facilities next to his building). I highly recommed Ariel's apartment for anyone planning to visit Madrid.