The hack is good, but it does not fix the underlying problem that Kanto in the game is bad aside from "OMG higher levels." The game throws everything that it can at you in prep for the Elite Four, and thus any challenge beyond that is just beefier stats rather than fundamental changes in strategy.

Complaining about the difficulty may seem silly, but at least for someone like me looking for a more challenging version of my favorite Pokémon game, this hack is far too tedious to fully enjoy.