I've been doing the 30 day shred everyday(i pretty much started when I started fitday). I was dying on the first day of day one, but stuck with it. I'm now on Day 22 (Day 2 of Level 3) and workout 3 is Killer. I've definitely seen a change in my body - my lower body especially - much more firm. Plus I've lost almost 9 pounds in 3 weeks.
I did change my diet slightly (just watched my calorie intake) so the diet excercise combo really works. Diet wise, I don't really even feel like I'm on a diet because I never feel hungry, I just switched out bad choices with good ones.
I'll probably recheck my measurements after the full 30 days and give you all an update.
Fitday Start - 6/8/2010
Start Weight: 218 lbs.
Current Weight: 200.3 (8/13/10)
Weight lost this week: -?
Total weight lost: -17.7
Goal Weight: 150 lbs
Goal Date: June 4, 2011
Mini Goal: 190 by January 1, 2010