I'll happily admit that I'm a bit of a fair weather boxing fan, I just can't get interested in the lower level stuff, much like non-league football holds no real attraction for me.
That said, Joshua really does look the real deal every time I've seen him, his hand speed and accuracy would be good 2-3 weight division down, in the heavyweights he just looks like he's toying with people. The guy today (who had one hell of a chin to be fair) looked like he was in slo-mo the difference was that stark. To that end I reckon a focused Joshua who is kept working hard and fighting to his plans will comfortably unify the division and go down as a genuine great of this era, he's got absolutely everything to be as good as he wants to be.