I recently booked two award reservations:
1) LAX to BOS, family of 4, Song flights, school vacation dates in Feb 06, Skysaver awards for all on 1st choice dates, preferred seating.
2) LAX to HNL, family of 4 in Y, Dec 06, all Skysaver awards, first choice dates, preferred seating.
Both were done completely on-line with no SMS intervention or assistance required. No muss, no fuss. Easy.
Maybe I'm just lucky, but I have never had any problems finding domestic skysaver awards given reasonable advance planning and a little flexibility.