I am a semiconductor scientist from Taiwan. I lived in the US for 9 years and thus speak native level English... Plus, I always travel with my wife.
Jim and Michelle are wonderful hosts. Communication has been really fluent, clear and fast between us before and during their stay. They left my flat perfectly clean and tidy. I thank them for not having become mad when there was no hot water for two days due to a problem in the building. I hardly recommend them!