My first weigh-in was 137.8 kgs and in the two weeks since I've lost 2.6 kgs which isn't a bad start. I'm going to work towards 2 kgs per week which will mean around 20 kgs after the 12 weeks.
A downside is that the people running it are Herbalife product distributers so they're pushing their products every chance they get. I don't want to use any kind of product like that. Some people are using it, for instance, the biggest loser this week (lost 3.7kgs!) is using Celebrity Slim. I feel kind of disadvantaged this way, but I guess I am really in it to lose weight, the prize is just a bonus.