One feature I'm curious about is the audio guide on Hop On Hop Off Naples (https://www.hop-on-hop-off-bus-tours.com/tour-city-sightseeing-naples-hop-on-hop-off-bus-tour) buses. Is it actually informative and engaging? I enjoy learning about history and culture while traveling, so this matters to me. For those who've used these Naples bus tours, did the commentary add value to your experience? Are there multiple languages available, and is the information detailed enough?