I reserved Karen's place for my sister and her partner, so here's what my sister had to say:
"Karen's place was a great convenient spot for our visit in the East Bay. The apartment is well-equipped and comfortable, and Karen was quick to reply if questions came up."
I second what my sister says. I do have one critique, however, which has nothing to do with the host or the apartment: Parking is a problem. The unit has no off-street parking, and street parking requires a city permit, which only city residents can obtain. The apartment's location is so central that you don't need a car to stay there, but having a car could be inconvenient.