Review (2/5): Save your money
This has a good battery life and feels good in the hand, but is no safer than any cheap body trimmer. I've gotten both hair and skin caught in it, and it struggles to cut various textures of hair. I've had to go over and over areas it fails to cut where a $20 trimmer clears the same area with one pass.
TLDR: cheap trimmers out perform this in every aspect except for battery life.