We cruised from Hong Kong to Bangkok. The ship (Viking Orion) is fabulous, the ports are quite a mix, and the passengers are generally not very nice people.
We enjoyed the ship, especially the Explorer's Dome and the gym/spa. The food and entertainment/ cultural series were mostly excellent. We especially enjoyed the Chef's Table, Manfredi's is also excellent.
In this region of the world, many of the ports are far from the cities of interest, so most of the excursions involve bus trips with groups of people that are just too large, especially for the included tours. Also, many of the passengers are not physically fit enough to keep up with the large groups, and the tour guides were sometimes insensitive to this. Viking does not do a very good job of grouping people together based on physical ability or interests. I'm not talking about any kind of strenuous hiking or anything like that. These bus tours require sufficient mobility to climb onto and off the buses with some efficiency, and some walking through crowded places with a lot of hustle and bustle. Sometimes the only toilet was upstairs with no elevator, and some participants were unable to climb stairs. Needless to say, this created difficult situations....
Very nice location on the ship, and the cabin is well designed.