The real challenge isn't the fights or dungeons in marleybone. Its getting there. It takes forever and is very hard. Does anyone else agree?
Well personally this just being my opinion I thought all of marleybone wasn't that hard if you are prepared like leveled up enough which you can do with side quests, have a ship good enough to fight the enemy ships, and have your companions at a lvl that is good enough to handle marleybone. I have done marleybone three times with privateer, swashbuckler, and witchdoctor and it wasn't a challenge for me I found the real challenges started when I reached Aquila which was a lot more hardcore