Nelson Marek 43
I researched this boat some time ago. It is essentially a Catalina/Morgan with that level of contruction, fit and finish. It was designed as an island cruiser/livaboard and in that does well. They are very comfortable at the dock and the accomodations are excellent.
I am not sure what a good sea boat it is. I don''t think it has any true sea berths. I was only able to find one strong comment about them and it was somewhat negative. I found it by searching on Google.com in the "groups" section. The comment was from someone who chartered on and stated that the sailing charateristics were less than desireable. But that is only one person''s opinion.
I find the following resources helpful:
Sailnet Boat check
Google.com (both web search and group)
Keep in mind that many of the "owner''s reviews" as are on Sailnet and Boattalk are positive... as you would expect from an owner. Its hard to find real critical data.
Hope this helps