I haven't done LA but from what other posters are saying, it's something that would be very difficult to stick with if you left. Since you are dependent upon their bars and supplements, it's not going to work so well in reality.
I've had great success with ediets.com. They have several plans to choose from, low carb, glycemic index, low cal/low fat, suzanne summers, etc. I've done the ediets plan which is a basic low cal/low fat similar principals to WW. But they do all the counting and planning for me. I check in each week, report my progress, get a new week's meal plan, shopping list and recipes. What I really like is that I am eating real food that I make so as I'm losing weight, I'm learning portion sizes.
Several years ago I lost 90lbs and kept the majority off (gained 15lbs). I'm going back now to lose the 15 I put on plus the remaining 30 I didn't lose yet. I'm not sure what the current cost is since I'm on a lifetime plan, when I first joined it was only $15 per month.