I have an F1. Was completely prepared to find fault with it when I recieved ir in a trade.
Couldn't find anything bad to say about it. Expected the handle to be too small. It wasn't.
Expected the thermorun handle to be tacky like kraton...It wasn't
Expected the ergonomics to be only fair at best....they were excellent.
Expected the stainless blade to take a lousy edge....It not only took a fine quality edge, it even held it well in use AND sharpened back up very easily.
It works VERY well at every task I,ve put it too.
My reccomendation is if you do get one get the leather sheath. I don't care much for the zytel one.
F1 is a great little knife.
I'm still trying to decide which Fehrman I want to get myself.