I'm writing this review several months later... but here it goes. We stayed there many months ago, June 2013.
It was a short stay, only one night, but we felt very comfortable, like in no other homestay we've been.
Dave and Gail were very attentive and kind, trying to help us with all the requests we made (information about places to eat, places to visit, getting a local Amish/Mennonite guide, etc...)
I'd definitely recommend this Guest Home if you're visiting the area and want to feel that you're part of the place. I hope I can get back there in a near future!