Medsailer

I have a friend looking at a Carver 455. It has Volvo engines with around 600 hours. He plans on cruising the ICW and Florida coast. Maybe the loop in the next couple years.
I don't know anything about the Carver other than what I've read online.
Anyone here have any first hand knowledge on this line of boats?
He did want something that would cruise around 15kts is the reason for this type of hull.

Thanks