The article, Modern Kit Houses: Thinking Inside the Box (free registration required), also cites several other prefab favorites. But it quotes the owners of the first Glidehouse:

What's really magic about the house is its beauty. Outside, its somewhat industrial looking, but inside it's a celebration of nature. There are bamboo floors, wooden cabeinets. There's rugged stone tile in the bathroom, and when you stand in the shower the floor feels like real ground. I used to associate contemporary with cold, impersonal spaces, but this house has completely changed that. It's like living in a Japanese garden.