For me, he uses too many notes. Al DiMeola can do the same thing, but the songs have space in them too, to my ears.
Surfing with the Alien is the only album of his I have, so this is all based on that album. Maybe he has other albums more akin to my liking, but I doubt it.
He is the type of guitarist that exists to entertain guitarists. Lots of overly technical noodling.