Raising mons is pretty fun but literally everything else is not.
It's a slow game with boring winded dialogue, the combat is simple, the menu UX is atrocious.
It's hard to get attached to the critters because of how many you get and how intertwined their evolution chart is.
It's a cheap persona clone with less QoL features.

I played Hacker's Dream which is supposedly the better one.

I have a soft spot for Digimon and it's cool to have a MetalGreymon and ExVeemon running around with you but that can't carry a game alone.