Instruct: Classify an Amazon review into positive or negative sentiment.
Query: not super good

this pump pretty much sucks. used it for 3 months in my van and the diaphragm valve inside somehow spun itself around and the pump locked up. i was out in the boonies so i took it apart and eventually found the problem. got the dinky piece of spring which is supposed to hold the valve in place back in position and it worked fine for another 3 months and now it is leaking pretty bad. i wouldn't bother.