My days in Cristina's house were really nice! The house was clean and tidy and with all the things we needed! It has a lot buses really close so you can go to the center in not too much time! But notice that the buses are better than de underground because this one is a little bit more far away! Also you have two supermarket maybe 2 minutes walking from the Apartment! So is really nice :)
The only problem we had was the Sofa's matress, you can sleep in there but is thin and a little bit uncorfotable.
The other two beds were perfect!