Its a shit concept. In true game freak fashion, its a RNG-heavy shitfest that rewards luck over strategy. Like a dice-rolling board game, its the type of game you'd only play passively with friends, but its a single player experience. Toby Fox's music is the only saving grace, but with how long many of the battles go because again, RNG-heavy battle, you'll get sick of it by the end of it.
TL;DR: imagine every pokemon battle being as long as a game of Civ 5, minus any real strategy or autistic micromanagement.