I remember reading this 10 years ago. I remembered the promotional material going on about how "It's Pokémon for an older demographic", but it's just bog standard shounen that isn't notable whatsoever, and the Pokémon themselves feel out of place. It quickly fell into obscurity and the English fanbase mostly didn't know it existed, so you'll always see new people showing confusion over it. People often compare it to Digimon Frontier, but I like Frontier so much more.