As the official Sailnet Pearsonite on this board, I can offer this review of the 365 as one place to find the negatives (and positives) from a reliable source:
The primary negatives are tight engine access, and the boat is slow in light air. It is a cruiser and not a racer. Compare the PHRF rating for the 365 to similar sized boats to see what I mean. The mizzen mast also clutters up the cockpit some.
Properly fitted out, and assuming you have the requisite skills and experience, the boat is up to blue water passages. Certainly there are many owners who have taken 365''s all over the place.
I know many 365 owners and can give you their email addresses if you''d like to talk to some directly. If you would like info, please email me offline at the address above. Good luck!