The only sweeteners we use are honey and fruit (juice, applesauce, bananas). The honey flavor can be overwhelming in certain foods, so it's been tricky. We've been using fruit juice concentrates from Dynamic Health without any noticeable issues, so that has helped a bit. We use them in sparkling mineral water for 'soda', as a topping on homemade ice cream, in smoothies, and to flavor our homemade yogurt. We use it in moderation, but it's a nice little crutch at the moment.
We do allow more during the holidays/parties, etc, but we try to fill the boys up with 'good stuff' before they overdo the 'bad stuff.' J can definitely feel when he's overdone it (tummy ache, etc).
I think J is at a maintenance stage -- he is just always going to have to watch his sugar/carb consumption. I think dh and I should probably stay low/no sugar for the foreseeable future for a lot of reasons (weight, candida, high cholesterol...) because we definitely feel much better when we do.
Pitfalls? Ben and Jerry just don't make *anything* low in sugar...
