Review title is Not Bad but Beware [SEP] I bought one of these to keep my hair trimmed to a buzz cut, thinking to eliminate those pesky trips to the barbershop.  It worked pretty good except when cutting your hair, rather than trimming a beard/moustache, you have alot more hair to vac.  And this trimmer actually handled that quite well the first couple of times, until I cleaned the unit and almost lost the little spring that allows the vac window to slide up and down for cleaning.  I did manage to bend the little spring which is very small and quite delicate and now the trimmer vac system works much less efficiently.  If you clean it, beware of the weeny spring.  Use tweezers when removing the spring and putting it back and too if you do take the spring out, place it someplace where it can't fall or get knocked off.  The other item that proved to be a challenge on this trimmer is the adjustable head lock.  While cutting my hair the last 2 times the lock slips from a higher setting down to a lower setting and in my case I had a much shorter buzz than I intended.  I'm keeping this one for my mustache, but intend to purchase something else for my buzz cuts.  So if like me, you're considering this trimmer for more than your beard/mustache, BEWARE.