Weight Loss Camps/Resorts

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I was wondering if anybody has been to any weight loss resorts, such as The Biggest Loser Resort, Hilton Head Health, or anything like that. If so, could you talk a little about your experience? I am looking into going to one of these as a healthy vacation for at least a week or more, and any suggestions on the best ones (and how it helped you reach your weight loss goals, if it did) would be much appreciated.

Specific things that would be helpful are:

Which resort/camp did you go to?
How long were you there?
How much weight/inches did you lose (or how did your fitness ability improve)?
Cost?
Anything else you think might be helpful

Thanks!