Re:maltodextrin, good or bad?
Generally if you;re young and lean then these types of product aren;t going to present a problem. Especially if you're training hard.
Probably not an issue, but that is not the same as saying they are the best thing though....
Work out the cost that you can get protein for and then work out how much you're paying for the product. Chances are you are probably paying over the odds of the malto.
I insist that clients use whole foods as much as possible. Protein is the hard and expensive thing to get to buy that in supplement for and then add on oats, bananas, pasta etc etc. All readily available with the right planning.