Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a Great Choice for Coarse Hair

After 2 years of using the Optima I decided to give this one a try, mainly because of the cordless option. I gave it a valiant effort, but it is just not powerful enough for me: it took twice the time of the Optima to get all the hair. It would likely be a worthwhile option for someone with fine or sparse hair.