Overhall it's good, it's just really grind, the first few card collections are alright, but later the game become more of a joke. It starts when pokemons are introduced, to a point that the biggest card collection is about other incremental games. The game feels a bit unbalanced in both the aspect of how rare some cards are and it's lack of better automation considering it's a game that in this state will take weeks to months to reach the end game.

It's more of an active game than many others out there, you will be checking merchants every 3~4 minutes and clicking every 2 seconds to a dozen of minutes depending on the card collections you choose, it could even take hours.

I just feel that some upgrades are really lackluster, they provide almost nothing even when you pile many copies of the same, meanwhile others are quite good, but also dont really impact the game that much cause they end boosting an early currency that you should have more than enough production at that point. It's like there's not much synergy in between the card collections, even through some do lower odds or increase production of other sets.