I stayed at Kay’s place during my internship at Jet Propulsion Laboratory.
Overall, she is very kind and welcoming. The best thing is the breakfast. You have many options and trust me the stock never ends. ;) She is very careful to take care of the breakfast materials and brings them immediately if it is running out.
Room is very big and has an air conditioner as well as a heater. You can also enjoy many classic movies collection by her.
Locality is very nice and safe. It is very convenient to go to JPL using public transportation. There are many grocery shops and restaurants nearby.
Overall, I would definitely recommend this place if you want to stay in Pasadena.