I am a 30 year Norelco razor user and I wouldn't use any other brand. My cool skin norelco died and the cost of heads and battery makes it more cost effective to buy new. I was reluctant because of the mixed reviews that I read. My cool skin was solid and depended. The new 8170XL has some improvements, but some cons. I don't care much for the light weight, almost cheesy feeling (compared to the cool skin). I don't like the very quiet motor that does not wake up the house. But, it sounds just like my cool skin, when it was time to plug it in and charge. I do like the closeness of the shave and that is important. I like the triple/triple heads and floating deck. It does store more shavings than the cool skin. The charge has held up very well, been almost a month and my razor has gone from 5 to 3 on the charge scale. I do like the lights. I do like the trimmer feature, something I did not have with my cool skin. I miss the shaving in the shower option, or shaving with a wet face. As with any electric shaver, you must use a pre-shave first. I find Williams Electric is by far the best that I have tried.