Hola Diana,
Gracias de nuevo por la cálida bienvenida!
My Mom and I stayed at Diana's studio in Jan. The location is very convenient - in the heart of Madrid (2 min from the metro). Diana is sooooo kind and very-very welcoming and ready to help with anything! She was flexible when we arrived late in the New year night as well :). There was everything needed for feeling like home in the clean and bright studio.
The studio is on the 4th floor without lift. Sometimes it can be difficult to pull luggage upstairs/downstairs.
We were happy with our stay and would highly recommend Diana's studio