I see KJ suited played a lot and i also see KJ suck out a lot versus AK and AQ.
Any two cards for paint lovers but essentially its suited or unsuited one stop connectors and no different to players who love played 46suited or other, i see those kind of hands often go up against AA or other premium and suck out...hitting 2 prs on the board.
Starting hands are exactly that, i thin there is a real skill with playing KJ post flop, especially if you hit any card or flop a draw..
Personally, this is a hand i might use when opening up my range but otherwise, its a position play at best