Of all the Remington / Brown / Philips devices this might actually reaches the shortest hairs haircut, with a remaining length of less than 1 mm. He is also very quiet.
The battery lasts estimated 30-40 minutes, so sufficient for some erasures. In the life I am, however, curious as it is - as far as I can tell - not about the latest battery technology. Therefore, "only" 4 stars.
The shaver is fully washable, which certainly facilitates a thorough cleaning.