Instruct: Classify the given review as either positive or negative.
Query: Would give it zero stars if possible

I have no problems with the Foodsaver rolls ... those seem to work flawlessly. These pre-made bags, however, have been next to worthless. Perhaps I just received a bad batch but only about one out of every 5 bag will even begin to evacuate much less hold a seal. Those that do evacuate typical lose their seals after a while. I'm sticking with the rolls from now on.One positive is that I can use the box these came in to store bags I've made from the rolls for later reuse. Other than that, these bags have been frustrating in the extreme!