This place is amazing! Many convenient stores near by to grab some food. Metro is around the block, however I walked everywhere since I was in Madrid to explore. Plaza Mayor is only a 30 minute walk, I recomend it. Cristina is an amazing person and always making sure you're doing ok and seeing if you need anything. I didn't meet Cristina, but I did meet her friend Amanda who received me with a warm welcome. I highly recomend this place. You won't regret it!