I’m a little late to this discussion, but since the OP originally also asked a more general question in regards to this brand, I thought I’d weigh in. Most of the responses were in regards to the Volvo engines.
I did quite a bit of research and pretty carefully crawled through several in the past. I have NOT owned one, so these are just my observations.
First, understand that these are similar to other “Taiwanese trawlers”, with their pros and cons. You can find plenty here if you search. My impressions were that the later ones (late 90 - early 2000’s) are fairly decent, with less issues than many from the 80’s.
Typical issues need to be well assessed by a surveyor. Primary concern are of course soft decks, followed by water intrusion/rotting under leaking windows & port lights. Hull blisters were an issue which has often been discussed and argued about herein. As someone else mentioned, they can be a bit rolly in anchorages. Bottom line, I wouldn’t pass by a clean, well maintained boat. They have lots of livable space for their length. I hope to go east for a great loop experience, and a clean one with a single Cummins would be high on my shopping list. I hope this helps. Good luck.