Partial ownership operated, to my knowledge the only request the owners had was main brand and color. They honestly believe all boats in that size are hard to work because they are big. Didn't have the heart to orient, it's never good to point out a toxic wife, ugly baby or miserable boat.
It wasn't a big fatal flaw like unstable or something like that. It was just an endless list of very frustrating design choices. From ladders to layouts, if you set out to make a boat hard to use as a gag... it would be it. Vertical ladders that as the boat loaded went slightly past vertical. With rungs and handles such a large diameter its a falling Hazzard. An internal staircase made for a man 8 feet tall with size 4 feet with a diesel stove at the bottom. The only ac heater in the entry way pointed at the door. Water tankage for a boat 5x smaller, a bathroom and shower stall that made anyone over 5'8" look like will Ferrell off elf when using it. A dash so tall there were milk crates to stand on to look over the bow... no window or wheelhouse powered ventilation. Table big enough to seat 10 guys but only one access point big enough for an adult male. Bunk access hallway narrower than the average man's torso width with a table jutting in it. Every cabinet opened away from the sink and stove top. No provision in the crew quarters for heat or gear drying, no provision for any gear drying except an internally vented dryer that fogged the Un ventilated wheelhouse to the point of unusable... never mind a deck that had three height transitions of about 3 inches. Could go on for about every feature, but it starts feeling mean.
I'm very familiar with the obstinate owner with very unrealistic or bad ideas. There was a builder who was very honest about making whatever you ask no matter if it was a good or bad idea. None were unsafe, but all rose and fell based off how reasonable the requests of the owners. 10 plus years on some are regarded as the absolute best and others.... not so much.
Since the 80s we've slowly moved towards trying to make a boat that does everything. 40 years ago it was a rare boat that seriously fished two let alone three species. My last little boat had 6 different species permits for 7 gear types, for fisheries that ideally have boats with wildly different specs. Sadly none are valuable enough to support one hyper specialized boat, well at least not valuable enough to support them for more the a couple years.