Review (3/5): Not for fine trimming
I basically like the trim it gives most of my beard, and the vacuum works well. However, there's a plastic guard (I assume related to the vacuum) that makes it difficult to do close work, like trimming the moustache above the lip, or removing fine hairs on the upper cheek or side of the neck that you wouldn't want to shave. So if you get it I would recommend a second device for those areas, or if you have hairy ears or a unibrow.