Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Does a great job!

I only use this to marinade meats for short periods of time. I save money because I'm not having to but the most tender cuts of meat and still get very tender steaks. I haven't had problems with the container holding the vacuum seal, then again I don't keep food in the canister longer than an hour. I've been washing the bottom of the container in the dishwasher and haven't noticed any damage after many, many washings. If I could change it a little bit, I would like to have a longer container. I marinade really thick london broils and sometimes they are hard to fit inside a 9 1/2 sq. inch container.