My family and I had a great stay at Constantine's! The apartment is very well-located in the Malasana neighborhood which has great shops, bars, and restaurants. It is also very close to the noviciado metro stop. The apartment, while located in the basement floor, felt bright and homey and was probably the cleanest place I have ever stayed - hotels included! We loved the smart design and the cute little patio (and the shower was lovely!). Constantine was a great host, taking the time to show us how everything worked despite being double parked. He would have given us city guides and advice but I am a resident of Madrid and had that covered. Also, having air conditioning in August in Madrid was a huge plus! I highly recommend this apartment for your stay in Madrid!