The three main features I would rate in my many months of experience as follows:
5 stars for the eyebrow trimmer: perfect, I do not know better
4 stars for the nose hair trimmer: very thorough, if you take a little time. And the nose remains intact ;-)
2 stars for the ear trimmer: here I reach still the razor because thorough.
All in all a really good product, if one reflects the features and performance at an affordable price.
