The tour guide's knowledge and effort were absolutely worth it! They didn't try to hard-sell anything, but rather enthusiastically shared their recommended products and food, allowing everyone to choose for themselves. It's a bit of a shame we couldn't go up to the Aso volcano, but we'll definitely come back if we get another chance! The boat ride felt a bit rushed, but for the rest of the itinerary, as long as you're prepared with energy and stamina, I highly recommend it.