Absolutely no problems at all. Hop on Hop Off bus is the only way to see the top tourist spots in Miami. Buses are reliable and generally on time according to traffic delays. Staff on oboard are friendly and very enthusiastic with their commentaries - well done guys you made our Miami experience more enjoyable.
Los Angeles, California
A great way to see LA. If you want to see all of LA then you need to have at least the 48hour pass as each loop is approx 2 to 2.5hours each without getting off, so plan your hop on's and Hop off's. Slightly better value when purchasing through Viator than off the street.