What are the potential downsides of choosing a cheaper or less well-known hop-on hop-off bus operator?

See Seattle by land and sea with City Sightseeing Hop-On, Hop-Off bus tour and Argosy Cruises Harbor Tour. The perfect way to enjoy Seattle! New York hop-on, hop-off bus tours are a way for you to jump on and off any of our New York buses at any of our designated stops, as many times as you wish. The hop-on hop-off London bus tour includes your bus ticket, audio guides, unlimited travel to over 60 stops across London, and free Wi-Fi on all open-top buses ... Explore Waiheke Island at your own pace with hop-on hop-off stops at world-class wineries, distilleries, beaches, art galleries, historical sites, and nature ... City Sightseeing New Orleans bus traveling through iconic city landmarks, offering a 1-day hop-on hop-off experience. Experience Tokyo's evolution on a scenic drive overlooking the Rainbow Bridge, mixing Tokyo's cherished landmarks with modern hotspots. From the beloved Tokyo ... Guests with ferry only tickets are required to enter via the Main Entrance at the top of the hill. Access is via a public bus (at own expense). Prices & More ... The world's leading open-top bus tour operator. Distinctive buses and friendly staff, selected cities with multilingual commentary or live guide. ... hop on hop off bus. Buses were clean and on time. Great locations and interesting commentary. A really great introduction to LA. Highlights. Access 3 scenic ... Experience Honolulu with Waikiki Trolley's Hop-On Hop-Off tours. Explore the city at your own pace and uncover its hidden gems! Save when you book online ...