Bought on 12 Dec and followed instructions in booklet. I shave the hair on my chin as instructed before using machines but find I’m having to shave every 3rd day so use machine probably e times a week. I know it takes awhile to focus on each follicle to destroy hairs but the ones coming through all the time seem to be some hairs and very strong. I use this machine just for chin area and hope it works otherwise an expensive item. I don’t whether 3 times a week will help I don’t want to shave hairs and use machine only two weeks at a time as they grow long. Advice welcome please. I may have to return item reluctantly if no progress next few weeks.