Instruct: Classify Amazon reviews into positive or negative sentiment
Query: how do you clean it?

I've ben shaving my entire head for 6 years. I usually use a gillette mach 3 turbo and love it but decided to try the quatro.I use a shave brush and shave soap. So I lather up and start shaving. The hair got stuck in the blades and it stopped shaving well after only a few strokes. I tried running it under water,shaking it violently under water, and even running my finger with the blades with no results. It stayed clogged. It now sits in my cabinet with the extra blade, useless. I once used a clogged bick razor and it took a chunk out of my forhead. So I went back to my trusty Mach 3 Turbo. I havent tried the auto vibrating one. Seems like a gimmick. The only worse blade I ever used was a dollar store brand. One word-OUCH!