We’re planning a sightseeing trip in Paris for about 18 people. Some of us think using regular public transport will work fine, but others argue that a tour bus would give us a smoother and more enjoyable experience. I’m not sure if it’s worth the extra cost, or if it’s just a convenience for tourists. Has anyone here used a tour bus in Paris for sightseeing, and was it really worth it compared to managing everything on your own?