I cut my own hair for years and always without attachment as short as possible.
After charging I turned on the unit and was first surprised by the sound of the linear motor and excited at the same time. He buzzes like a kitten, and indeed in the same tone, as it is known by hairdressers.
Quoted and cut in a very short time. The blades cut quickly and reliably without chirp.
The battery keeps pleasantly long and the average result is just awesome. It saves valuable time by this machine simply because you do not have to go 100 times over the same spot, as it unfortunately is necessary reached by other devices.
Have the device now for almost 2 years and the blades cut still like the first day. Imagine I'll last a lifetime on this investment.