The first two days didn't go well. By the third day, our dog figured out how to play the game without assistance. But the easy mode gave too much kibble, which would be great for a large breed, but not for a toy breed, so we switched it to the difficult mode. This frustrated her and she started getting impatient and barking at the toy for seemingly "not working". We were worried that it would become a loud game that encourages unwanted "demand barking" behaviors, but we eventually were able to find a medium mode and reward her for persistent play without much barking. After 15 minutes, she is either full or disinterested with the repetitiveness, so I wouldn't say that it occupies a dog for 30 minutes, but overall it's a good game. Idea: Version 2.0 should have openings on both sides of the game, with the option to close off the second opening if others don't need it.