Cruising isn't for everyone, just as Disney isn't for everyone.
DW loves
DCL though she is lukewarm at best about WDW (she was last there in 2012 and has absolutely no desire to return anytime soon). We like Celebrity and Viking, and cruising on the Mississippi, and we want to try out Princess and Cunard, but we had a poor experience on RCL so are not inclined to sail on them anytime soon.
We also like the smaller ships like the Magic and Wonder. We find the Fantasy and Dream to be a bit larger than we like though we've sailed on them and will be on the Fantasy again next year. We won't even consider the mega ships operated by the major cruise lines (I cancelled an NCL cruise last year because I just didn't want to be on a ship with 5000+ passengers). We're happy with the entertainment and dining options on DCL, the lack of a casino, and particularly like the level of service on DCL. We're perfectly happy to spend our time onboard reading by the pool or on our veranda.