This will work. I use it for small events and demos. Have to game it a little for it to work well. PIA to use. Belongs to store. They sell it. Nough said.
This works Gooder. Much gooder. It's mine and I use it for larger events, food truck and catering. Don't use it much now that I have a chamber sealer but it is more portable and more robust than the chamber sealer. With a little gaming I've been able to seal a bag full of water (not frozen). It and other models like it are probably the best bang for the buck for sealers.
Now that I've have a chamber sealer (Vacmaster VP112) I would not be without one. Many sizes and types of bags available. Easy squeezy. It's worth the price difference for me but maybe not for everyone.