Action, action, action! Action all the time!
I wasn't very fond of this movie's premise, especially considering how it apparently took from us the chance of seeing a real Vs Super Sentai team up, but it was still fun due to all the action. I'm usually bothered by stock footage, but it actually worked just fine here... well, kind of. It was nice to see all the chaos and action, but the cg explosions during the battle against the Keys and the stock footage used there stood out very obviously from the other scenes in the movie. It didn't hurt my enjoyment much, but it did make the movie look rather cheap.
Same goes to the mecha battle, although I really liked how they put some thought in the match ups there, like the Japanese robots defeating Gedoushu Bladerun and gun users beating the God of Snipers, the edited stock footage of old shows still was very obvious.
Anyway, as far as actual problems that bothered me go, the main three returning monsters were underwhelming. Yogoshimacritein was acting more like his son than himself and both Brajira and Dagon were just generic here. I guess the final battle confirms that they don't have most old robot suits around, considering the use of stock footage-only for most pre-Gao shows in the final battle. It was also kind of odd to see all this Goseiger focus but the Goseiger setting itself ignored. There was no mention of the Tower of Heaven, Gosei World, Master Head or calling for help of other Gosei Angels at all. In spite of all their screentime, the Goseiger here easily could have been replaced by any other previous Sentai team.