We chose AMA for our cruise on the Mekong Delta (Siem Reap to Saigon) because they offered the most interesting itinerary. And, I must say we were not disappointed! We also took the land portion--2 days in Hanoi, a night in Ha Long Bay and 2 days in Saigon. The hotels were beyond beautiful and service on the ship superb. The food was delicious and varied. For the land tours, we were broken up into groups of 10 or 12' which made it more fun and gave plenty of time for questions, etc. All of our guides were extremely knowledgeable about the history of the country, the people, etc.