A CS27 is not the ideal ocean cruiser for a family, or even a couple. But it will do what I want as a singlehander and it is roomy enough.
My ideal boat? Lottery win required.
A 50' version of Dashew's Sundeer in aluminum, or a Boreal 44 or 50
The Alubat Cigale is a great boat but the keel is too deep for many places.
More affordably I think Perry's Saga 43 would make a great ocean cruiser, as would the Saga 35 for less money.
None are considered wide boats, and the Sundeer type is very narrow.