I've been seeing a lot about the Hop On Hop Off Rome (https://www.hop-on-hop-off-bus-tours.com/tour-city-sightseeing-rome-hop-on-hop-off-bus-tour) buses and honestly wondering if it's actually worth the money. For first-time visitors, it sounds convenient since you can stop at places like the Colosseum, Vatican, and Trevi Fountain without worrying about transport. But how crowded does it get, especially during peak season? Also, do the audio guides really add value or are they just basic? I'd love to hear from people who've tried these Rome bus tours—did it save you time or did you feel like walking or public transport would've been better?