I have no idea why we thought drinking a glass of what was essentially chocolate milk was a good breakfast replacement, but we loved the stuff. It looks a lot like Slim-Fast in retrospect, although I never heard that it was exceptionally low-cal. Though I guess if you just had a glass of milk for a meal, it's lower-cal than eating, say, a Denny's Grand Slam. (No one says "low-cal" any more, do they? It's all about the low-fat and the HFCS-free.)
But you've gotta check out the ad. The '80s hair on the first chick! The chunky businessman who drinks it while ironing his pants! The last girl, who serves it to herself in a wine glass while putting on the most hideously 1980s patterned stockings!
I kinda wish I had a glass of it right now.