I bought dietpower a year or more ago.
I had gotten it after I hit a plateau. I do like the program and it is very well set up. You can even create recipes and figure out how many calories per serving there are.
But, I can't say I've lost any weight using it. I don't think I tried too hard though, and right now I'm just tired of counting!
I know how much a serving is suppose to be. So, I'm going to see how it goes without counting for awhile, and if I go off track I'll boot Dietpower back up.
If you are going to count calories, it is a great program (no writer's cramp)