The large "J" measurement of these
rigs create the large genoas and large
spinnakers. As a cruiser the
spinnaker issues may be less important, but if you expect to be using the kites, many of these designs are infamous for wanting to "deathroll" when sailed deep. This can be unnerving at best, and at worst can lead to crash gybes.
Spinnaker takedowns can be complicated by the large size and minimal crew.
However, if you pick your days, and keep the apparent wind away from dead aft, these boats can be a lot of fun too. Just don't expect to be using the chutes when the wind pipes up much above 18-20 knots or so.
As I mentioned on another thread we lived quite happily with such a boat for 12 years, sailed lots with just a blade and main, had great deck gear and large
winches to help deal with the large headsails and picked our days to attempt flying the
spinnakers. We did own this boat in a partnership arrangement that saw us mostly sailing with crews of 4 or more, which helped. When the partnership was dissolved my wife and I downsized to 35 feet for better managability as we are now almost exclusively doublehanding.
If you can carefully choose a boat that has not been abused or neglected, and was well built in the first place you can get a lot of bang for your buck taking this route.