When you insert the blade, I was a bit overwhelmed at first, since the derivation or the back of the cardboard is it very bad.
But after NEN few tries I got it back.
The shaving performance is outstanding. In order to enable direct really well cut my Konturren and shaving untern chin was well.
But it needs a lot of rest and time, as it may cause injury otherwise. Otherwise, the knife with the expensive blades can be definitely show. Thumbs up from me.