I've always been a casual fan.
This guy has been bashed by anyone thats ever picked up a guitar except for some of his early disciples. As a budding guitarist in the early 80s, Yngwie was a constant topic among my friends. I was never a big fan of his style, but always appreciated his playing. I've seen him a few times live, once opening for Maiden.
If you look at him in a post-Blackmore vein, he is a great player. This piece is awesome, give it a listen/look with an open mind.