A few times.. We used to be RCCL.. Mostly Caribbean and panama canal.. Now for convenience and to get to alaska easily out of San fran but not as easy as it used to be... Princess. Seattle and Vancouver are now the main jump on and off points.
We have done Princess to the Greek Isles and such and Southeast Asia.. Decent rides.. But no QE9 lol
I have done everything but Celebrity and, despite their current problem, I like Norwegian the best. I like the Freestyle Cruising because I hate coming back to the ship after a long day and having to get gussied up to go to dinner.