I personally have never used it. I use repto-min pellets for my adults and for hatchlings I use tetra "baby" reptomin and they love it. Of course while the pellets are their staple diet, they get a wide variety of other foods as well. I would highly recommend the baby pellets, they're small and high in calcium.
:I've been using Fluker's turtle pellets from the 50 lb bags, and it seems ok with the adults, but the babies seem to need supplements. How does fluker rate on nutrition and who else has used it?