Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not worth the money

I recently purchased this pump, thinking it was going to be superior...well, after several days of just getting frustrated with the pumps inability to faciliate a let-down; I decided to buy something else. The shields are not comfortable. It does not stimulate the appropriate part of the breast. The suction is not suffient either. Shop around before spending the money on this pump.