I bought this like many others from the fun I remember having with the first game on the Xbox when it came out.
Before I begin I want to say that I am not recommending this game not because of its gameplay, but more because of its lack of improvement. It's not a bad game.
-- Like the first one, the game is great for kids. It's simple and easy to learn. Most of it is social interaction and fulfilling ride challanges.
-- Interaction with all aspects of the park. Whether it's training employeess managing park finances, or playing minigames, you can still control your park.
--This is EXACTLY like the first game. The mechanics haven't changed at all and I felt like I was paying for an expansion more than a sequel. It actually got rather boring.
--Lack of freedom with rides. This was the same problem with the first game. SimCoaster, SimTheme Park, and RollerCoaster Tycoon didn't force you to build only in dedicated zones as well as have a "power" bar to limit your complexity on the park, making ride creativity less than fun because you always had to worry about power management.
For the TL;DR: this game is exactly like the first one. If you want a game that's fun for kids, buy it. If you want a better amusement park game in nearly every single aspect, buy Rollercoaster Tycon, SimTheme Park, or SimCoaster.