We stayed at the Greenhouse mid October for a week and had a lovely time there, apartment is located in a very central area with easy access to 2 Metro stations and good access from Airport (Line 8 & 10) . Santiago was away so we did not meet him but were welcomed by his lovely wife, as we were delayed and could not get to flat at agreed time. Because of the central location of the flat, it was easy to get to local supermarkets and stock up on groceries for breakfast etc. We ate out each evening & walked to all restaurants which was a lovely part of our evening given the nice temperatures. Santiago was really good at sending information before we arrived and was really helpful in answering all our questions. If we go back to Madrid for a holiday, we will try to stay here again.