I am so glad I stayed with Grecia. She was a great host. On the first day she took me around the city center and showed me how to use public transportation. On the 4th day, she joined me for a trip to Toledo. It's nice to stay with Grecia especially if it's your first time in the city and you don't know anyone there.
Transportation was easy, bus station is right in front of tje building and metro station is 5 mins walk. If you want to go to the center, the easiest way is to take line 6 to Lagazpi station and from there take line 3 to the center.