These buses are a good option if you're travelling to New Zealand alone. It's not a set excursion; you can choose the number of days you want to spend in each city, and whether or not you want to continue with the same group. You don't need to worry about accommodation, as the driver will book it for you. It's paid for separately. You can make friends easily; the staff are young, and most visitors are European. Speaking English is essential, as the drivers are New Zealanders who don't speak other languages.