Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pop-up function does not measure up

I purchased this shaver mainly for the wet/dry pop-up trimer but found it weak for the task. I had to upgrade to the panasonic 8000 wet/dry shavers. These are pricey but function for 10 mo0nths on average. This latest purchase is my 4th on the 8000 series.