I won't go into too much detail, but this simply works. I was using a panasonic es-lv67 for about 2 years, but I got sick and tired of having to shave for 11-12 minutes. I do have very tough and dense multi-directional bristles, but that doesn't stop this very efficient machine giving me a comfortable and close shave in 6-7 minutes. There is NO other shaver that can do that for my particular skin and bristle combination. Simply the best.