We stayed at Vero for a few days after WDW as well as doing the Disney Dream during the month of August.
We are the parents of older sons and many asked us "why in the world" would we sail a
Disney Cruise with older kids! We had a blast, enjoyed the shows,
Castaway Cay and the food! We even did an excursion through Disney while docked in Nassau at a private island beach with really cool blow up rafts, water activities!
With that being said, we cruised in August and it was VERY CROWDED! We were able to use the adult pool and that SAVED US from the insanity of the high demand August season.
I would recommend BOTH Vero which we loved and Disney Cruise, specifically The Dream, but would NOT recommend cruising in June,July, August because of the crowds. Too crowded for the little ones in my opinion!
Have fun planning your post WDW "wind down"!