I have a handivac and a foodsaver. To me they server different purposes. I will buy, for example a whole salmon, skin it and portion it, then I separate the portions with wax paper and put all of the portions in a gallon handivac bag, evacuate and freeze. TYhe Handivac can be opened, remove a portion and put the rest back evacuate and right back in the freeser. In that way, I am gertting several meals out of one bag. I do burgers like that too. four to a layer, two layers to a gallon bag.
I use the foodsaver for whole meal portions of say chicken (2 Thighs and a breast) or the backs, necks, wings and giblets from two whole chickens to be used later for soup. Leg of Lamb, things like that. If you plastic wrap or individual bag and then HandiVac, you can get a few uses out of the bag. I do wash and reuse the foosSaver bags as well. I read where someone turns the foodsaver bags inside out and runs them in a short dishwasher cycle.
AC