It's a relaxing and addictive game.

Strangely enough, and despite the game's appearance, I found the experience rather stressful and unpleasant.
For a start, cycles (at the end of which villagers get food) end in a flash, and it seems impossible to choose what food to give them, so they can use useful cards that you'd rather have kept.
Cards pop up all over the place, pushing other cards out of the way and constantly disrupting the terrain. What's more, the animal cards are constantly moving and pushing other cards, making new ones appear anywhere.

Even with the options to increase cycle length and pause, I found the game frustrating. You also seem to have to do a lot of micromanaging, having your eyes everywhere as the terrain fills up, while having a hell of a time keeping everything organized because of the problems mentioned earlier.

I seriously think that having a grid on which to place the cards would have made the experience more enjoyable. And a bit of automation for the excessively repetitive management. The game tends to become a pause simulator, especially later in the game...
I feel like I'm spending my time trying to finish a puzzle that a child is constantly shuffling.

Although it has a fairly unique mechanic, the gameplay loop is repetitive and once you get the hang of it Stacklands will not give you anything new. It offers at most 10 hours of gameplay.