Finished Italy's first puzzle, haven't reached the other countries yet.
Fair enough — that first one is really just “here's how you drag”. Italy is six short days and the real puzzle starts around day 3–4, when tickets get tight; Greece after that adds a storm that closes the sea mid-route. If you only have three minutes, the Daily Route on the home screen is the quickest way to see a proper one. Thanks again for trying it!