I shot the Nikon F3 for a month or two, and for a longer period, 6 months or so, shot Nikon F's in plain, eye level prisms. The lenses are fantastic values on the used market, especially the non-ai for B&W. Even though I wear glasses, actually preferred the eye level F3 over the HP model, for the slightly greater viewfinder magnification. When I first used a metered F, I thought it was clunky garbage, but years later I got to use several F's with eye level prisms and it handled like a totally different camera. I can see why they still have a following. In fact, one of the few cameras I regret selling was a well used, brassed, black 64 F with an eye level prism. Smooth, smooth, smooth; must've been owned by a journalist. So I view both the F and F3 as worthy cameras.
Don't have any of the Nikon stuff anymore. When it came SLR's, I had such a long history with the Leicaflex SL model, couldn't justify having another line. Despite all the good things about the Nikons, the Leicaflex SL viewfinder, with its' crispness and high magnification, was just so much better. But I don't shoot SLR's much anymore. If I did, I would still have the Nikons. Reliable and affordable; nice mix.