My weight is good, so I haven't read much on the actual diet, but I am trying the ladder. Being a developer, I sit most of the day and for me I have developed a lower back pain so I figure I need more exercise. Hopefully this will work out.
I do the 5BX myself though (where the ladder is based on), as I mentioned in an earlier comment :)
Protip: Make (or find and print) a calendar and hang it in a visible spot. Put an X every day you do the exercises, and then it's just a matter of not breaking the chain :)