For some reason, summarizing my feelings about the CS-1 makes me think of a line from the movie Crazy People, in which insane-asylum patients write advertising slogans. When Dudley Moore was brainstorming a slogan for Volvo, he said it's ''boxy but good.'' That's how I see the CenterStage; it's the ''boxy but good'' Volvo of the scaler world. While it didn't get me as excited as the Teranex or Snell & Wilcox (Ferrari and Porsche, if you will), it always performed its job well with no fuss, and it worked every time.