Satisfaction!
A lot of the time I'm reading that either the Dom or the Sub isn't getting what they are looking for with partner/s.
Why?
Doesn't negotiation happen any more. I use something called Power Questions if your unsure as to what they are then I'll explain.
Power Questions are for the Dom and Sub to build what is to be a beautiful thing. Its done only out of play complete honesty is required and is essential to the process. Both parties have to agree to asking and answering Power Questions. They are Questions that an answer must be given mostly asked things are personal like about the things we generally try to hide.
You have to agree on an amount before hand so you'd say three that means three questions asked by both parties!!! Ah could be more by all parties each one a no holds barred this breaks down some of the uneasy barriers that sit between Dom and Sub.
Satisfaction is vital in a working relationship you all have to be happy.
