The one I had a look at a few years ago was a stinking, rusting overcrowded hell-hole with a crapped out 500 sitting on the deck. I think it was Asian-owned, and it was parked in Rabaul Harbour with a few others on a rare stop over.
The pilot and an engineer spend
months at a time on the boat for a few thousand dollars (US) per trip. They get a few weeks off then head out again.
The American pilot seemed to like it. Seemed more like a bad dream to me! I suppose it all depends how desperate you are. Good luck if you give it a go!