Got the GERBER LMFII, tried the integrated sharpener. First of all, yep it works pretty well for putting back a cutting edge (Gross edge not Razor Sharp to be clear). It works only with the plain edge as the serrated part is chisel grind (one side only has an angle). I thought sure it would put an edge back at the serrations, it does for the big ones, but after many times of doing the sharpening with the integrated sharpener I noticed that I put a nick on one of the teeth because each time the plain edge ended, the sharpening stones jumped on the tooth. It might be wise to use another sharpening device than this one, but as a survival knife I know that I can still use the integrated sharpener to put an edge back if I have nothing else in hand. That been said, keep your knives sharp all the time.
I Love this blade, its very well in hand, good balance, great overall, takes the abuse.