I did Slim-Fast back in 2001 and it really works.
It is also great for convenience. I recently bought the Optima drink and started the plan yesterday. I bought the French Vanilla pre-made shakes. I had one yesterday and it was really good - just serve it ice cold.
Also, the Slim-Fast plan really isn't just "two shakes and a meal."
Shake and small lunch
It is great for structure. I am just drinking one shake a day, for lunch, because I am so busy.
Start Weight (8/28/06): 161
Current Weight (11/1/06): 146
Goal Weight: 135