The Jazz Cruise has switched to Celebrity Infinity this year, which is due for reno November 2020; we are boarding February 1. I can't articulate my reasons; but based on the Summit in 2019, I preferred Holland to Celebrity. Celebrity was fine, but it just didn't have Holland's "charm." And passenger age doesn't apply on the jazz cruise; as PelicanPirate said, it's a jazz crowd. And we are almost all old!