Instruct: Classify a given Amazon review as either positive or negative.
Query: Leaks and hard to zip

Wish I had read the reviews before purchasing about $60.00 worth at walmart to store my daughters dorm stuff. They seemed okay at first although they were hard to zip even though they were not filled completely. They stayed airtight for about 3 days then i noticed that most of the bags i had stored had leaked. Very disappointing as i was excited at how much storage space they saved. Large ziplock bags rolled so all the air comes out then sealed would probably work as well and cost alot less. Trying to zip these things is a nightmare as the slider keeps coming off and even when you think you have it sealed it isn't. In my opionion they were a waste of money