Sergio is a gracious and helpful host. His apartment is spacious and clean and is in a great location with museums, parks, shops and metro stations all a short walk away. However, the location is a bit noisy. Residents in other apartments were also noisy at night. This might not be a problem for some people but we like things a bit quieter! That said we did have a great time and would recommend Sergio as a host and his apartment as a base if you want to be in the centre of Madrid and close to all the action.