I have been really happy with the low-carb way of eating and it's the only thing that has worked for me to rid myself of the weight I gained w/2 pregnancies in 3 years. I used to eat low-fat, low calorie and work out 5-6 days a week, but never got closer than 7lbs away from my goal weight (my pre-pregnancy weight). Now I eat all I want, just low-carb. I'm never hungry, my skin is better (no breakouts), I have more energy and never need a nap in the afternoon like I used to. I workout 2-3 days a week and am seeing great results. I'm 9 lbs away from my goal weight and know that I'll reach it no problem as long as I stick to my low-carb way of life. No-one can believe I look this good only 4 months after my daughter's birth! Low-carb is now a way of life for me.
HOWEVER, I do believe that no plan works for everyone, and for some low-carbing isn't the way to go. No biggy. All people are different, and one way of eating won't work for all.