Its good, but...
Good things: its fun and a good time killer! I like breeding, training, racing, then selling my foals!
But then there are problems.
When Im not playing on WiFi, I get an ad for the same game whenever I open the app, or finish training/racing my horse. The feed store does not display the items for sale, but if you constantly scroll and tap, you can find what you are looking for.
Barrel Runnin Chick about
Derby Quest: Horse Manager, v2.4