S = Style. What kind of style are you looking for in your reading? I generally look for a nice easy read (it encourages me to keep on reading) and I want the characters to grip me by their "go get them" approach to life. I think the most single important thing in writing is to be true to yourself. Your style should be appropriate for the kind of story you're hoping tow ritemow.
T = Timing. How punctual or otherwise are your characters? Do any of them have an obsession with being on time for things? How does that obsession impact on others?