Bests & Worsts Reviews from Amazon

I got the 51s as a replacement for me 8000 series think I was do for a change after 3 years. To that point I couldn't have been happier with my shaver. The foil cutter is terrible. I felt like i was going to my face with sandpaper and my shaves took 3x as long. I was tempted to go through my trash been to find the old 'beat' foil. I don't even have a thick beard and it was a struggle several times through ****Alternative**** I read on a few blogs that people had success using a "30B; series 3" replacement meant for a 4000/7000 series. I gave it a shot and my shaver is like new! It matches up perfect with the 8000 series, its just a different color plastic. Its also cheaper.