I love shooting with old Nikons, and the F is arguably the best 35mm camera ever made. It is rock solid, and completely reliable. A Leica M might feel more refined in operation, but it is simply a step or two down from the Nikon F.
I have a few old Nikons, and I try to use all of them regularly. The F and the S3 pictured here have never been repaired or serviced, yet when I checked out their shutters on my digital shutter tester, they were both spot-on. Both have titanium curtains, which don't rot like the shutters many other companies used.
You can see the similarities between the two cameras. The winding mechanisms and shutter mechanisms are the same in both cameras, and are interchangeable. Many people upgrade the old silk shutters in Nikon rangefinders by swapping in the titanium curtains from an old F. The Nikon F is pretty much a Nikon S rangefinder camera with a mirror box and prism attached.
I also have some newer Nikons, and love shooting the F3. The F3 was my first "real" Nikon 25 years ago, and is still one of my favorites.
The old F does have some idiosyncrasies, the shutter button is set to the rear like the Nikon rangefinder cameras (with which you focused using your middle finder, and used your index finger on the shutter button), and you have to remove the back when changing film. It is still much easier to change film than with any Leica rangefinder. Also, the shutter speed maxes out at 1/1000, which can be troublesome if you shoot fast films during the day, or like large aperture lenses.
The F is also a bit heavy, but it is heavy because it is pretty much a solid piece of metal. It fits well in the hands, and the large viewfinder makes focusing easy. The eye-level prism can be dented, but the prisms on the F2 are much more fragile (except for the Ti models, which seem nearly impossible to dent).
I love my old F, and it is one of the cameras I will never part with.