I don’t think it is a bad idea if you can stick with it and stay balanced. Many folks go on Atkins and end up eating too much fat and don’t get enough vitamins and minerals (I guess you could say they are not really following the plan right, they see low carb on a label and ignore the fat grams in the food). So if you can do it without going too heavy on the fat calories, I say go for it. A lower carb meal plan of any type will help your BGs.
I would take an honest look at foods that you would not want to give up and if that list is long and you know you will slip on a certain plan, consider a different meal plan. Personally I love carbs too much to go on Atkins. I do very well on a South Beach diet. If I stick with phase 3, my weight stays the same and it is not a hard meal plan to stay with. Phase 3 includes healthier carbs that are lower on the glycemic index so I don’t get BG spikes but I can still have some of the foods I just don’t want to give up. Plus I can maintain this type of eating easily without having to buy “special” foods.
Remember that whatever plan you go with that weight maintenance is all about figuring out how many calories you need to take in to maintain your weight. You can do this with any diet, it is all about what you take in versus what your body burns. I know people swear by certain diet plans and if they work for that person, great. But you have to be able to maintain those eating habits long term.