Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great for space, but not the best quality

I used these bags during a move and also for clothes I put in storage. At first they work great, but essentially they're just giant zip lock bags. The little slide that opens and shuts the bag kept falling off, so I just closed the bag by hand like I would a sandwich baggie. They did work great keeping out moisture. I had clothes in an unairconditioned storage unit for a year and they were all in perfect condition. No smell or anything. I think these are good products, but might need a little patience when using.