Eh.. Pro's and Con's:
Cons; I think the way of intergrating pokemon, cities and battle systems as a replica to the game defeats the gaming concept of minecraft some way. It takes away the minecraft feeling. I am not saying that its all building in minecraft, but to me, minecraft is supposed to be a survival/ building game, not so much a battle game.
Pro's; If you like pokemon, its a new way of playing it as a pokemon game. 3D, and all... It makes exploring more fun, because you want to search for all pokemon..
Over all; Its a good mod, but not for me >< I dont know how to elaborate more. o3o