If you like the SimCity or The Settlers Series then this is the game for you. Hands down
What makes this game fun is watching your population grow and watching your ships trade from opponents. The higher your population goes the more needs you will need to have available so they will continue to grow.
I rated the difficultly "Just right" because you can set your game in Continuous Mode to whatever you want.
Now the the manual for this game sucks because it doesnt give enough info about the game.
So the best way to learn how to play this game is by playing the Campaign. Which i really enjoyed.
This is also one of those games you can play while relaxing. its really casual friendly. Though I dont suggest you fall asleep or leave the game running while away. Numberous times I've fallen asleep with it on, I wake up and my cities are starving and riots are starting and all my beautiful buildings are burned down. It shocked me the first few times. I was disappointed but I was also laughing because it was unexpected. I blame the Natural disasters like the Storm and tornado ha.
This game is definitely one of my favs. I highly recommend giving it a try.