I went on Weight Watchers about a year ago and dropped 70 over about 9 motnhs (went from around 250 to under 180), so I can relate. My wife lost about 35-40 over the same time with them, and we just did it on their web site.
Best thing about it - we do IT a lot more
Worst, I spent last winter totally freezing. My body hadn't adjusted to the lack of insulation I think. But the summer heat doesn't bother me as much, so it's a wash I guess.
I seem to recall PJ getting Lasik too, which I did 2 years ago. Now if only I could make a hit movie ....