13 year old mower for a couple of small plots of grass works like new.  The grass was not looking that great after mowing and now looks completely uniform in height after sharpening.  Not only are the blades now sharp (took about 30 minutes to disassemble, sharpen, reassemble) but there were instructions on how to adjust the mower.  BTW- turning the reel with the included lever was easy.  The mower still has duct tape to hold the padded grip together, but there is a certain masculinity to having a well used piece of equipment.