I too have been looking at the MacGregor powersailors for the last several years. I've had over 20 years in the coast guard reserves, and owned a 27' powerboat for 8 years, and still have a 17 duckboat. I've finally made the decision that they are a good boat for the money, and will be buying one late this season or early next season. I've spent hundreds of hours reading through owner's reviews and input, and one site that gives a good idea about traveling with 5 on board through the San Juans and Canada thru some nasty weather is: http://www.ddunn.org/
Select "our epic adventure", and spend some time. He has documented his travelings very well.