You can expect really great hospitality! Check-in process was seamless. Each day, Satomi and/or her husband Hiroshi come to say hello at the door, and check in to make sure you're all right. Satomi also gave me a little memento (chocolate!) to mark my stay in Japan. I was in Japan for language exchange/homestay purposes, and I wish I had got to talk to them more.
Note that Chofu is a little far from the city, though, and depending on what time you intend to go into Tokyo proper (their line connects to Shinjuku station), the morning rush is incredibly packed from 7am to 9am. I left the house at 6am most days to avoid this.
Otherwise, the place is spacious and clean. Better suited for a family rather than one person.