Miguel Angel's place was excellent. Him and his mother are extremely kind-hearted, caring, and lovely hosts. My room was comfortable and cozy, and though the walls are a bit thin they provide you with earplugs which were very useful to me. Occasionally I had to wait for the bathroom, but this didn't detract from my stay. Amazing location and unbeatable price, you are in the city center, and all of the main sights of Madrid are within walking distance. Would strongly recommend this room for solo travelers in Madrid.