I actually tried it in quick, and i would say its pretty enjoyable to play.
Has pretty much the same skill gap of an average genji, but the only problem is that he rely too much on his cooldown to kill and also to move...
I mean, the much at 4 sec is ok, but the seismic slam and the uppercut are on an averagely mid-high cooldown, so, u can find yourself only with a punch in between on 3-4 people aftern killing 2 people at max