For what it's worth, I like honing guides, and whilst I appreciate the simple (and exquisite) workmanship of the KellII, I much prefer the Veritas MkII.
There are extremely few things in any walk of life, in any passtime or area of work, that are truly black and white. To say that 'X is the only way to do it, and if you do it another way, you are fooling yourself' is both rather insulting of a great many folk, and also showing an opinion for what it is - one tracked and so blinded by tradition that no one else can possibly be correct.
I would love to be able to freehand hone, but even on some nice 6mm plane irons, I have trouble with rocking the bevel. For me honing guides work. I would love to have the good fortune to be blessed with the unparalleled skill of a pair of steady arms, but I don't.
And anyway, I thought that that particular nugget of urban myth about honing guides wearing a stone unevenly had been laid to rest. I have done far more harm to a waterstone with an inadvertent slip of a narrow chisel than I could possibly do with a wide roller that spreads the pressure in a 'rolling' fashion, not a 'grinding' fashion.
Right then, now that I have ignored common sense and the warning signs not to feed the trolls, I shall delve back into my garage full of walnut and sycamore shavings and wonder how on earth I ever manage to get a square edge. Miracles abound in Alloa, is the only answer I can now think of!
Cheers,
Adam