That is odd. Presumably you were happy with your Axe FX II? So why the urge to sell it? That would be as if I felt like giving my 80's VHS copy of Ghostbusters to a charity shop just because the abysmal 2016 remake came out!!
In any way... the hardware design, the colour screens, and the massive amounts of DSP on offer, are what reignited my interested in Fractal. I owned an Axe FX II a few times, and I couldn't bond with it at all. Hated the green screens, didn't think the amps sounded as good as what I already had, had many minor quibbles with the reverbs and delays and other effects, and all in all.... it wasn't for me. Fractal didn't really grab me until the Axe FX III.