If it weren't for the fact that it was rushed quite a bit (many features are missing from the original demo video/previous 3D installments, such as a starting animation when pokémon are sent out (though pokémon will still preform this animation occasionally while they're idle), attack animations aren't even preformed if an attack misses or is evaded (unlike Pkmn Stadium 1 and 2), the enviornment isn't changed in any way no matter how many times you hyper beam the ground/seismic toss wailord into a building like in the video, and many pokemon models feel cheaply made/are reused from the original pokemon stadium (Bronzong anyone?).), then perhaps Pokémon Battle Revolution could of turned out to be a fun game, or at least bearable to complete, but as the game stands now, it's sort of like Pokemon Stadium mixed with Pokemon Coliseum only without the Gameboy Tower, or the Mini Games, or the 3D Pokedex, or much of a story mode.
On the side note, you can battle randomly with anyone else around the world that happens to have the game, which can be occasionaly challanging and fun.
But other then that, don't get it unless you enjoy battling en-mass or are really desperate to get a certain item or the novelty surfing pikachu. (One of the reasons I got the game was in order to get an up-grade for one of my porygons.;))