I noticed the pattern on the blade change and realized it was time to get new ones. I hadn't noticed performance was starting to fade because I used them almost every day so it was a very gradual decline. Not that the blades weren't working well but what a difference between worn and new! Never paid much attention to it before but definitely going to from now on.
We have a 22 year Down Syndrome young man that trying to shave w/ a blade or even old style norelco is not ideal. If we let the whiskers grow two or three days, this product is perfect, then we use old style electric for slight touchup
In this world with a lot of facial hair I needed something to keep my mustache and goatee in shape. Also, as a retiree, I no longer need a daily clean shave So, I use this as just a trimmer once a week and as a shaver and trimmer one day a week. This has worked perfect for me.
This "Norelco One" is simply Amazing. It gives me so much ease in clean shaving, lining and fading with its 3 different head caps. Its battery last so long and it is easy to clean and replace heads. It is light weight and I love the firm grip due to material used in manufacturing. I have used it for 18 months now and never had razor bumps. Friends don't believe it when i tell them I do my own face and beard lining. The head is flexible especially shaving under the chin and lining forehead and side burns. I love it and will recommend it 100 % any day.