Great space saver for storage, but I don't think I'd sous vide for more than a few hours in these bags. The bag puffed up after just an hour or less & I had to press air out manually in the sous vide. Would not do a multi-day (or even full day) cook in these bags.
Few bags seals broke after initial wash - wasn’t too upset about it bc it kind of still vacuum sealed and I used it for meat sous vide so I just tossed them after. Feels kind of bad to use this just for sous vide so I use it to store vegetables and fruit for a bit then wash them lightly then sous vide meat which makes me feel better about the unit economics of the bag.