Instruct: Classify a given Amazon review as either positive or negative.
Query: lousy design

Mine broke also after one use. Opened it up: it's a rubber flexible rotor connected to a metal axis. The axis is the problem - it will spin within the rotor almost immediately as it has nothing to spread the force to the rotor. I tried to fix it by putting a nail through a hole I drilled through the axis. But then I could not get the cover lid snap back...Well, it's $7 - it may or may not do the one time job you need it for. Perhaps rev up the drill really gently may help.