Response from Dave:
I never had the opportunity to stay with Karen, although she provided me with great communication, and let me know that there was a problem with my cancellation with airbnb. Although I tried to cancel my reservation, and airbnb led me to believe the cancellation went though, Karen was not only unable to book someone else for the night, but I was charged for a stay that I never made. This was definitely not Karen's fault, and any negative experience that resulted was most likely a mistake on airbnb's side, probably with their computer. As I did not have the opportunity to meet Karen, or to stay with her, I have no opinion on her place, although I can say that she communicated matters to me in a very timely and respectful manner.