In addition (or exception) to the chaos and confusion mentioned in the previous definition, there is adventure, discovery, and maybe even some excitement 'down the rabbit hole.' The unknown is 'down the rabbit hole,' and may also be present in the hallucinogenic experience mentioned in the same previous definition.
In the movie, 'The Matrix,' the pill chosen could perpetuate the myth or uncover the truth, a truth that was not as pleasurable, but was definitely exciting. Alice probably liked the fantasy her choices displayed rather than the reality exposed by a similar choice in, "The Matrix."
Alice wouldn't have chosen to go down the rabbit hole if she thought it might not be fun.