See that's the thing. Every time I see a criticism on the F0/F1, it's only about the styling. And I'll admit, I didn't like it at first either, but it grew on me to the point that I PREFER the styling of the F0/F1 over the K, (except the K0).
Compared to the GS750 or Z1, well, then it becomes a brand argument, and I prefer Honda. I could care less about absolute performance.
Oh, and I got my bike for less than half of the selling price of that one. (Not MUCH less, but less). 
Yep, that's fair enough mate, in the end it's what you personally like, but when you wonder why the F/F1 doesn't attract nearly the same money even though you like it better, the answer is that you still can't re-write history, it was a sales disaster due to that styling, and it hasn't "grown" on the buying public any more now, than it did then.
You can't criticize them mechanically, because they were just a late K engine in a slightly different frame with a deadly rear disc setup that would spit you down the road, as mine did me. The F2/F3 got it right styling-wise, with better forks and much better brakes, but of course had problems with the head and cam, which was "modified" to squeeze out another 4 BHP to make it as fast as the new Suzuki GS750, which was killing the F/F1 and K7/8 in the sales race.
If only they could have had someone like Mike Rieck working for their R&D department then, they could have had much more power with reliability too!
You might not care about absolute performance, but at the time, Honda certainly did when they couldn't move their product. Back then, racing victories counted heavily for sales, and brand loyalty wasn't established due to the relative "new" nature of all 4 Jap manufacturers.
Don't get me wrong, I'm not "slagging off" on the F/F1, just telling you how it was, from someone who was actually there, working part time in a Suzuki dealership, when it was happening. Cheers, Terry.
Oh, I know it was a disaster because of the styling, no matter how much better it was "under the skin". For some folks, beauty IS skin-deep, but that's OK, not holding it against anyone.
Oh, I didn't feel that you were "attacking" the F0/F1, you were just pointing out the history, as you said.
As far as the F2/F3 go, I look at them side-by-side with the earlier Fs and for the most part, they seem nearly identical. As far as cosmetics, same tank, but with the stripe decals, same sidecovers, same seat, the forks were painted black on the lowers, comstar wheels with dual disks, different header and exhaust, horns mounted up front.
