We had an excellent time--even though our day began in POURING rain. Our guide was extremely knowledgeable and utterly charming. The locations were breathtaking and the bus tour of Brussels was exceptionally well plotted. An hour or so in Antwerp is hard to pull off--you get just a taste, but it's a GREAT taste! Brussels was an extraordinary experience, too. The bus was well-equipped and comfortable. The PA system went out at first (probably due to the rain) but our guide spoke from the center of the bus so we didn't miss anything--and later in the day our driver had fixed the microphone. Kudos for caring staff! Our entire group had a marvelous day, one we'll never forget. The Viator team is to be congratulated for overcoming minor challenges with resolve and panache. We highly recommend this one-day overview of two of Belgium's great cities as well as the Belgian and Dutch countryside.