I've tried a couple electric razors over the years, but always ended up rubbing my face raw trying to get a close shave. I started out with DE years ago in the 60's, then went to injector, then various disposables, then cartridge razors like the Shick & Mach I. I changed back to DE about 10 years ago because I've found it to be the least expensive & most effective way to shave.
I consider shaving & getting haircuts a complete waste of my precious retirement time, but I do it anyway. Whenever I've tried to grow a beard, at the 3-5 day point, my neck starts itching & I have to shave it off. I've tried growing my hair long a couple times too, but when it starts curling over my ears, it drives me nuts & I'm off to the barber.