I don't think it was a particularly good story. It's a standard alien invasion plot, which means the emphasis is on the characters, all of whom are basically just testosterone-driven exaggerations and twistings of their 616 counterparts. The Hulk's angry? Well, now he eats people. Cap's a patriot? Well, now he's a jingoistic dickwad. Thor's a living god? Well, now people think he's a crazy hippie. It's like the scribblings of a child in crayon over character work that's been refined over decades by better storytellers.
Although Hitch's art was pretty. He can't design interesting costumes to save his life (with Cap's WWII outfit being a notable exception), but he made everything look nice.