Stay at Cristina's house was very pleasant. Her house is in very calm street so my sleep was excellent and the location is very good. You will get in 15 minutes (maybe even less) to the centre of Belem area of Lisbon.
She was very very nice, everyday a fresh tee was waiting for me including delicisous portuguese cakes. Cristina was very nice person who adviced me where to go, which places to visit etc...