Our 15 days cruise started in Hong Kong; we made a tour along Vietnam (3 ports) and around Taiwan (3 ports) and then back to Hong Kong.
Celebrity Millenium is a very nice ship (°2002), but it's well maintained, and very stable. Even in heavier weather with 5m waves, the ship cuts clean through the waves. Oceanview cabins are agreable. Our room attendant gave a very nice service.
The captain showed up regularly, gave some presentations in the theatre, and was very accessible and sympathetic.
The cabin was nice. It never felt too small. Enough cupboards available, suitcases fitted under the bed.