No, well, yes for me - I lost 3 stone and it took 4 months. I am a short-arse though so that 3 stone made me BMI 31.
I've really not struggled to keep it off. I've been on an all-inclusive holiday, lots of work travel and events, other holidays and seemingly been able to manage it fine.
Key for me I think, is that I made real changes to my movement and diet while on MJ, and have carried them on ever since.
For instance, I never do less than 7000 steps during my working week - even if it means dragging myself out for a cold dark walk, because on a normal work from home day, I could end up only doing 2000. At weekends I try to do around 12,000+.
I've totally changed my diet and the way I eat. I favour veggie based deals, no pasta or pizza as I bloat terribly now. Rarely have takeaways as I prefer homecooked food but do go out for dinner so if I am going to eat something like pizza or a burger I save it for eating out.
And I don't buy things that I know I couldn't resist - if it's not in the house, I can't eat it!
Disclaimer: I AM NOT SAYING THIS WOULD BE THE SAME FOR EVERYONE OR IT'S THAT EASY <<<<< Personal experience!