After a couple HAL and Princess voyages in between dozens of Celebrity Cruises we now cruise for the itinerary.
Liked that the basic drink package on Princess covered most drinks, but preferred entertainment and food in Celebrity.
As to tipping, the topic of the thread, have entertained many Australians in the US. Have educated them that is you get good service leave a tip. Awful service don't.
However, at home waitstaff that used to get a few dollars plus tips now gets about $12/hrs as a base wage. Thus less dependent on tips. Sadly not that way on board where much of their income is from gratuities.