Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Junk Metal

I've had the misfortune of owning two such frames. Even with gentle care, in no time the middle began to sag (no center support). Opening and closing the unit with the mattress in place was impossible, as the mechanism would simply jam, so one had to take the mattress off completely to open and close. Soon the mechanism began to bend and jam. The handles also break off easily. If you get a year's use out of this, you're lucky.