We are planning our first
Disney cruise for this fall, but are veteran cruisers. We lost count around 20, but have been on many cruises with Carnival, RCL, and Norwegian, as well as a couple Princess and Celebrity. We have found the Carnival, Royal Caribbean, and Norwegian experiences fairly interchangeable. The longer cruises on any of the 3 lines were more impressive than any of the shorter ones with much more variability
within than
between lines. Almost across the board, the 6-8 night cruises had better servers and entertainment than the weekenders on any line. Princess and Celebrity catered to a different crowd with loftier cuisine but their execution was just as hit or miss as the others. We enjoyed the educational talks but found ourselves bored more often with long periods of downtime. This happens occasionally on the others as well, especially in recent years as they seem to have scaled back on offerings due to budget cuts. All of our cruises 10-15 years ago had more special bonuses like midnight buffets, ice and fruit carvings, exceptional crew interactions, random moments of wow, etc. than we have seen in recent years. I hope that DCL will be like a flashback to our great cruises of the past, but I am trying not to get my hopes up to high.
As always, any day on a cruise is better than a day at work. Regardless of line, we have always felt safe and valued as a customer, and we have never had a bad cruise. There have been some exceptional experiences, like the unbelievable talent on a 3 night weekend on Carnival Imagination out of LA. This was also when we experienced the Chef's Table, without doubt our best dining experience ever--better than Victoria and Albert's!
Overall Carnival, Royal Caribbean, and Norwegian have all provided excellent cruise experiences with no clear 'better' or 'worse' line. Even the kids programs seem to vary more between ships on the same line than between lines. My dd's favorite and most disappointing experiences with the children's programs were both on RCL, and the difference was based almost entirely on the staff and programming for that cruise. I expect Disney to provide a consistently outstanding experience--that is what we are paying for. I doubt DCL will beat every other cruise we have been on for half the cost, but it should be better than most

!