I have owned a 330 express with 250 yamahas since 2001 and I still enjoy using it. I mostly bottom fish in the Gulf of Mexico within 100 miles or less from shore. I am able to run at 32 mph under most sea conditions without beating everyone up too much and that speed gets me around 1 mpg. With a seasoned fishing crew we can fish six fairly comfortably but only four if newbies who don't know how to keep lines untangled. The boat is stored in a dry storage rack and has had few issues.
Issues include:
Wiring could be much better, the harness leading to the hard top corroded and failed while I was overnight fishing. Fortunately I carry spare wire and connectors and I jumped power to my hard top for critical electronics.
The topside cap to hull opened up allowing water intrusion in rough seas. Grady paid for repair.
The FP generator raw water pump leaked from day one
Lots of cockpit screws are of less than great marine grade SS and many have rusted.
The anchor windlass is mounted too far forward in the pre 2008 (I think that is the year they more the windlass abaft) models causing the anchor rode to pile against the bow and not fall to the bottom of the rode locker.
Unless you are tall, the helm seat is a bit low on the pre 2008 models.
I could list several more but these would be more nit-picking instead of real issues.
What do I not like...
Limited fishing related storage
The deep V rocks significantly in of Gulf chop.
Limited ice capacity (newer models have cooler plates in fish locker)
390 Gal of fuel limits fishing range some times.
The side profile catches a stiff wind.
Could use windshield defroster
What I do like:
Great ride
Dry ride (I don't remove front curtains)
Adequate sleeping quarters when FP generator worked (I have since replace the FP with another more simple to repair genset)
Adequate size freshwater tank
Adequate waste holding tank
Large hardtop with curtains allow us to escape heavy rains and keeps you dry on occasions when weather reports were WRONG and and you plow your way home in 6 foot headseas.
The retractable instrument mount.
I might be able to offer more if I understood how you dream you might use your 330. I would NOT enjoy more than two nights and more than four people unless docked and with nearby services/supplies. I did not enjoy trailering and launching/loading the boat like I did for the first year I owned it.
I am older now, retired, and have more leisure time. My current dream boat would be one of the big heavy slow tuna boats you see on Wicked Tuna. I could carry supplies and water and could make ice and stay out for a week at a time. My son on the other hand, would choose the 376 Canyon with triple 425's or, heaven forbid on this forum, a 39 ST Contender.
Lots of experience so please ask and I'll do my best to answer.