I really like the game despite it's flaws. I can see why some people were turned off. It has a lot of early game downtime where your just waiting for money to accumulate. Also much of dino's and buildings are locked and requires a lot of game play to make them available. You do this by moving from different area's of the Islands and completing the challenges on them. They are fun and you do keep progress from each island's research and unlocks. You also have missions to complete, which can give you a variety of rewards including unlocking dinosaur traits and other abilities.
It's got great graphics and the environment and world is alluring to get easy to get lost in. It does get frustrating at times because no matter what on some scenario's no matter how good you think you have those precise and expensive creatures secured they will break out.When you suffer your first containment failure and watch the loving creatures you brought to life go wild on your guest, which means an incoming and costly lawsuit btw, you realize the mistakes you have made.
Here is some game play video if you'd like to see it in action.