We booked this cruise due to its itinerary, price, and perks. With departure from Tokyo and overnight stops in Kobe, Taipei, and Hong Kong as well as a stop in Shanghai it was a great way to see Asia's major cities on one cruise. Also, having never cruised with Celebrity before it was a chance to experience what Celebrity promises to offer, "a premium cruise with outstanding service and taste culinary excellence, all while on board ships with stunning designs and luxurious accommodations."
Before we even boarded, however, issues started to crop up with our booking that caused us to have concerns about Celebrity's standard of quality:
1. The two perks that we chose on booking were changed to some other options (twice) and had to be reinstated after calling my cruise agent
Must see is the Nunobiki Falls. If the herb garden is not what you need to see, great option is take ropeway to midstation (1/2 price) and walk down the hiking trail. Great view and lots of photo ops along the trail.
Time in port was limited so only about 4 hours available to see Taipei. Port was 1 hour away from City but easy to get to on train that runs regularly. Buy round trip ticket in advance from ticket office to save time as not possible to use machines without coins so there could be a line up.
Port is quite a distance from main city area, there are free shuttle bus to 2 malls (MTR stations)
Kagoshima has an active volcano that erupts up to 300 times a year, so good chance of actually seeing eruption while there for the day if lucky to witness. Eruption is brief so must spot before cloud of smoke dissipate.