Review (1/5): Completely useless as a trimmer, would not buy
Not sure how this thing got so many good reviews. The device is completely useless at trimming my beard, and only works on the lowest setting (which is a really close trim). Literally on any setting past the shortest setting, it won't actually trim any hair.
Not sure who designed the springy gaurd but its clear just from looking at it that none of the hair actually gets close enough to the blades to get cut.
I have an old razor that plugs in and has 3 or 4 different adapters, and that works a lot better.
When it does cut, on the really short setting, the vacuum does actually work, but theres a plastic thing that gets in the way and makes it tough to shave with any accuracy.
Anyway, hope to prevent people from having the same frustrations I have after spending $40 for something that could barely shave your head much less something a bit more technical, like your face!