Hi there,
I've had good luck with CAD/CALP. I didn't lose much on Atkins and my blood sugar did a nose dive. I think Atkins was too high in fat for my particular body.
Be sure to take the Carb Addict's test to see if you are one. This WOE is particularly good for carb addicts and people with "insulin issues," such as diabetes, hypoglycemia, and Syndrome X. I did CAD for 2 weeks, then switched to CALP, which helps you modify CAD for different ages, body types, and health issues.
Make sure to balance your RM -- 1/3 low carb, 1/3 high carb, 1/3 high protein and a salad (this is a visual measure -- you only need to approximate the volume). And make sure to finish the RM within ONE hour of starting to eat. The CMs are similar to Atkins, but you can do a low-fat version, and the allowed food lists are different. Make sure you eat enough at your CMs so that you are satisfied -- otherwise, you'll eat the entire refrigerator for RM!
Some people switching from Atkins think that the RM is an excuse to "pig out" on carbs, but it really isn't. If you want to eat an entire cake, you must eat the same volume of high protein and of low-carb veggies -- I personally can't eat that much, and definitely not within an hour.
It's also possible to do a low-fat CAD/CALP, as well as a vegetarian version. I love the flexibility.
Good luck. I hope you like it as much as I do.