I had a really good time here - I recommend for solo travelers. The apartment is super modern, nice and clean. The room is great for one person - the best is comfortable and you have enough space to put your things. The location is great and safe - every night i walk home by myself after 00:00/01:00h and i always felt safe, 10m walking from the subway. I loved Madrid and i really recommend the place, thank you, i will book again when i come back :)