Been a while since the first time I started the series, and right now might as well take the time to catch up with the story. If you love the pokemon games and wanted to read a much deeper plot compared to the anime, then Pokespe is there to satisfy that want!

While some parts don't exactly follow the game plot fully, Pokespe does follow most of the game plot in the narrative and have the story flows in a seamless way. While you may only initially get attached to say Red, Blue/Green, Yellow or Green/Blue when you first started the series, you'll end up liking the other younger pokedex owners as the story continues.

And yes, since the Pokespe's plot had a continuous narrative as it connects all the main Pokemon game plots, Red and the others DOES grow up accordingly (unlike Ash/Satoshi in the anime who somehow remains 10yo throughout the series) so that should be the other appeal to the series.