As an '04 owner, I have nothing but praise for them. You'll find people LOVE to say, "those are heavy pigs", "oh, it's not an LS2, that sucks", etc.
I've found people making these remarks have never even sat in a GTO.
I don't like yellow, but if we all liked the same color of the same car, the car scene would be boring.
By the way, there is a silver 04 at Indian Mond Pontiac, and I am leaning towards selling mine. I only get it out about twice a month.
http://www.nurkvinny.com/2004_GTO.htm