A must for a horse racing fan!
The only drawback I could see is that there is no tutorial, as if they expect you to have played before or you know everything already.
Lack of tutorial aside, it is a very good and highly addicting game.
The "Theme Park Mode" gives you the freedom of either choosing to ride a horse pre-designed by the game or by breeding your own horse and using it for racing. The breeding part of the game makes it playable for a very long time. It will make you want to breed that perfect horse to add to your stable.
It is worth playing horse racing fan or not,
but for a horse racing fan, it is a must have.