Definition: You are provided with a user review of a restaurant. Your task is to classify the given review into two categories: 1) positive, and 2) negative based on its content.
Input: I echo the prior poor reviews and wish had checked Yelp before my colleague booked Avi White (owner and sole locksmith, I believe) at Austins Premier Lock & Key.  This unscrupulous operation charged over $500 to rekey some locks, or $32/lock, about triple the normal $12-$14.  In addition, Avi charged both a service call and labor (normal practice is one or the other).  My associate did not catch the overcharging before swiping our company card.I initially thought the ludicrously high amount was a billing mistake.  Avi was slow to respond to multiple calls (took a couple weeks) and his tone was belligerent.  He only became responsive when I mentioned posting a review.  He promised to come back after conferring with his 'boss,' but that was over a week ago and no call-back.Reading the other reviews, the overcharging and poor service seem to be a systemic pattern with this company.
