The Food Saver bags are the best, however, their vacuum machines are terrible. I have owned 3 of them and they last about 6 months to 8 months and I only use them once a month to freeze my 3 dogs steamed Salmon. I wish the quality was better, I would rather buy their product.
I used these more before i upgraded to my current vacuum sealer that has a bag cutter in it, made it a lit easier set up to prep, although It would have been nice to get more per box.
These easy fill bags are my go-to for freezing soups and sauces. They stand up for filling (I use a wide funnel with them), seal nicely, and then I re-distribute the contents within the sealed bag and freeze them flat to maximize freezer space. In theory you could use regular bags, or fashion your own from the rolled material, but neither of those options offers the stand and fill option. I definitely recommend and am a repeat purchaser.
I use these for literally everything -- keeps things fresh for a month or more. Have a white onion in fridge right now that's from January -- still fresh!