Hi, yes I've tried and it definitely works great.
And the food is super healthy, but you're right, it's very difficult to stay on for long stretches (but then again, so is Atkins, or South Beach ...etc).
Never tried WW, but I'm sure it's good too.

If you have the 6-mini makeover, you can give that a try.* It's hard but it's only 6 days.* I use when I plateau.