I had had great time at Karla's. Such a friendly house full of kind people an in depth great neighbourhood to boot
Karla's English is pretty good bu it boulder definitely help if you spoke some Spanish.
I felt very welcome there and even spent a few nights with her family (who taught me how to play rummy), but also felt free to be in my own an use the space a my own.
I never felt that my possessions were at risk and left them unsupervised sometimes for a full day at a time. No loss at all.
Overall, had a great time and would definitely go back.