Instruct: Classify Amazon reviews into positive or negative sentiment
Query: WORST EVER!

I bought this thinking it was the replacement for the discontinued excellent Panasonic ER411 that I had for many years. Panasonic changed the blade height on this newer ER421 model so that it does not cut close at all. I also thought the small LED light would be helpful and it doesn't even aim straight (pointless). I purchased the Mangroomer trimmer this week from Amazon and it works flawless just like the old Panasonic ER411 did. Don't waste your money on the Panasonic RE421 series.