Agree.
If you have a LOT to lose, it also helps to plan to lose in smaller increments. If you have to lose 100 lbs, try dropping by 10 or 20 and then maintaining that weight for 6 months to a year. Then do it again.
Now that I stop and think about it, that's pretty much what I did without planning it - drop by 10 over 2-3 months, then hold it for 4+ months, then drop another 10.