It all depends upon individual's perception, to me Gux was always a player to watch. Whether it was fnatic 09 or later, i've been a big fan of Gux sp. the way he assaults. Insane~
And to me, neither forest nor GTR underpressed his glory anyway.
But yes, i agree that when it's comes down to communal popularity, Gux is clearly underrated.
Too many effects at times, yes. But my real quarrel with it is the cutting and fast forwarding. There is simply too much of it. Frags lose their significance because you are not "in touch" with the situation. You are unable to assess the enemy's movement, his movement, game sense and the relevance of each kill really. You see some nice shots but it's really just frag after a frag after a frag. It's like you're watching him play deathmatch vs bots. Instead of seeing a great 1v4 clutch or whatever, the whole movie is just a seamless fragshow of 1frag/1second.
Case in point: that sick round he played vs mouz. One of my favourite clutches ever played by him - that last kill on tixo was just so awesome. The editing of the movie really just kills how fucking brilliant that situation really was.
Coupled with the appalling choice of music. Before you say that it's a matter of taste - it's not. Picking the right songs takes careful consideration, not everything in your favourites playlist works. Mind you, I'm a metalhead myself (though I wouldn't call this screamo or hardcore or whatever it is metal) so I could somewhat stomach it, but it's just too extreme of a choice. The music is just... annoying. And it doesn't fit the movie.
Anyway, it had a couple of nice touches. Like how he removed the smoke whenever there was a kill through it.