Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Super Heavy-Duty

Well I read all the reviews about how this guy is this tall and weighs this much and it still holds, but I am 6'4 and weigh 200lbs. and even though I know I should have used the support brackets I didn't. It's still holding, no problems, and if I ever lose my car jack I think this could substitute.