I used it in Jan. to res. OKW for a week in Oct. The request included borrowing points and several room requests. MS confirmed everything in a follow up e-mail and also by snail mail. In March, at the 7 month window I called to cancel and switch the reservation to VWL so we could see what that looks likes. I did that over the phone, because I wasn't sure if I could explain everything I wanted in an e-mail. I was very happy with the response using e-mail reservations.
JACK