Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't expect a second use out of them!

I loved these bags at first. I rated them a "2" because with the first use, they work great. After that, though, it's a crap shoot if it'll work again. They seem to be too rigid in that when the vacuum seal is used, the bag compresses and sometimes can create folds that break open rendering the seal useless for multiple uses. I do use the bags again to store items, but can't vacuum seal and compress, so they're basically expensive plastic bags. If you only need them for 1 season or just one long-term use, then buy them, but don't expect them to keep working after the bag is reinflated. Some do work a second time, but I've never had a bag do three rounds of duty. I've bought the multi-pack and the cubes, and both have had the same issues.