Summary: This is the electric chain saw, 15 inch blade. Of course you need electricity handy -- I use either extension cord or portable generator. A saw this small is for light or occasional use. For heavy duty, get a larger saw, probably gasoline powered. Safety is paramount! Even this little saw can take off a hand if you are not careful. I didn't, but saw opportunities when the saw would bind or something bump the chain.
Summary: I have found as with many trimmers like this that is struggles in comparison to a regular handheld razor. As a man with fairly thick facial hair it does not seem to do the job, especially with regard to complete shaving as per one of the attachments.
Summary: I purchased this product in 2009 to replace my previous battery driven beard trimmer which - after many years of great service - failed after being dropped on a ceramic tile floor. Unexpectedly, after the loss of an 'old friend', I have not been dissappointed with this new unit. The 3mm / 6mm comb attachment trims my mustache and goatee beard exactly as required and using the 9mm / 12mm comb attachment it's use has been extended and my wife now gives my hair regular...
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