Thanks Cruiser Elite for the clarification. I agree it really is a bargain that I can see being used by everyone as soon as more people are aware of it.
Just hope the service doesn't go down in the Suites if they are all full, they start cost cutting due to all the redemptions (ie. no more Dom, etc) and SQ doesnt pull the Saver awards on these seats.
However the fact that as you said there is only 1 Saver seat available per flight could alleiviate this anyway.