Bsetter

Sailing on June 4th - I've been on the Encore, but there seems to be a few differences between the 2 ships so I have a few questions. Is Spice 2.0 free and open to 18 years and over during the day? Is the no kids rules enforced? How easy is it to change dinner reservations or get new ones at the specialty restaurants once on-board? Any other tips are appreciated.