I suspect that the moderator will show up and move this thread as Coach House only builds Class C units. Like many you have stepped into the confusion zone caused by the marketing people thinking that calling it a B makes it sexier. :B It is just a Class C without a bed over the cab.
They are certainly one of the top converters and if the floor plan and prices meet your needs, you will surely be happy with a purchase. You might also look at the Leisure Travel units.