The main advantage of it is that it doesn't irritate like other machines,
and also you don't have to worry about running out of battery because it doesn't have one.
It only works with electricity.

The rating is proportional to the price. First of all, an advantage for me, a disadvantage for others, is that it doesn't have a battery, it only works with a plug. Yes, it is more reliable, but you lose practicality.

With 30 euros, you can buy a cheap branded German shaving machine. It loses in luxury and appearance, it has a large battery, but it shaves very well with two hands. It shaves deeply (with water), it doesn't irritate the skin, and I have no problems anywhere, even on the neck, it does a great job.
It cannot be compared to a razor, obviously, but someone can shave every day without irritation and quickly. I, who have coarse hair, need two hands.

I say it again, for the money, it is the best choice. Surely there are much better options for shaving, etc., but with 30 euros, you can do your job decently.