We had a great stay at Conchis apartment! They were at the apartment just in time to give us the keys and communication was perfect. The apartment is beautifully renovated, with better than expected amenities which could be used even for a longer stay - washing machine, dishwasher, coffee machine, etc. The location is also great, 10 min walk to 2 different metro lines, so in under 30 mins you can be in the city center and at all main attractions. I definitely would recommend this apartment for visiting Madrid!