The apartment is located on the top floor within one of the busiest plazas in Madrid with lots of shops and restaurants. My husband and I stayed for two nights and found the location great for walking to main attractions in Madrid. Communication with Carmen made our stay easier. The metro station was close by although can be tricky with heavy luggage, probably a 15 minute walk with large suitcases as there are people everywhere. Check in was easy however getting upstairs was probably the worst bit (it probably took us 10 minutes to get up with two 25kg suitcases with us). Be aware there are 113 steps to get to the apartment and the staircase is narrow (climbing 5 levels of stairs). The apartment itself was modern with an abundance of light but was quite small like a loft, however very cozy. The roof can be a hazard to tall people (my 6'4 husband had to bend the whole time) and I had to bend at times too especially getting into bed (I'm 5'3) and we had accidentally hit our hands on the roof as well. There is also currently loud construction happening next door (as of April 2017) and they start from 8am from what I can remember so not good for the late rises! However if you're looking for a very central base to stay, I would recommend this apartment.