We use ours for deer, jerky, beef anything that goes in the freezer. No problem with freezer burn. You can control the waste by cutting the size you need.
I used one last summer getting ready for fall hunting season. Ours worked great for getting all the food sealed for our wilderness trip. I gave one to my dad as a Christmas present, the bags are kinda expensive but you can reuse them if you just cut below the seal, you'll want to make them longer than needed when you first make the bags. Better though are the plastic storage containers for your weekly leftover/marinating
We use ours for every thing. No deer this year but still put away some hand loaded ammo and sealed up a shot gun for storage. Oiled it good with three in one and bagged it. Also did the barrels for it. They should keep it from rusting and last for ever. I am getting old and don't use all my guns any more. So I am putting some of them away for when my kids get them.