I have an F2 that I got only a couple of months ago. Given the time of year and weather, I haven't used it much. It is very sharp out of the box, the VG-10 steel is excellent, and it is a nice size. I will use mine primarily for hunting and think it will suit those duties fine. The blade is not flexible like a traditional fillet knife, it's more like a boning knife with a fillet knife shape. The handle is very comfortable and durable thermorun with a lanyard hole at the end. I think it would be an excellent salt water knife or for larger fish, since the blade will cut fish spine, fins, head, etc. with ease. It's also small enough for cleaning trout and bass. I would say it can do all fishing duties very very well except filleting, which I think it would do adequately. The kydex sheath that comes with is cheesy, but does the job. I'm not sure it's worth the $100+, but it is a good knife. Also, there's a guy on youtube (I think an Aussie), that has a few vids cleaning salt water fish with the older model. Just do a search on fallkniven f2 and he comes up.