Research local boatyard's. Go to the one that sounds the best and ask them what boats don't seem to hold up well or are not well made.
All of the yards I have been in know that Mainships are very lightly built to put it nicely.
Andiamo,
I'm sure you'll get some Mainship arguments, starting with mine. It's clear than you don't know Mainships.
The Mainship was marketed as a mass produced, economical trawler marketed to the masses. The design and engineering of the boat was excellent. The execution (manufacturer) was fair, and even poor in some cases and a lot of owners made improvements and modifications to make it better. The 2000 and later models have a LOT of advantages over the competion, including a lower price which you get from mass production.
Kinda like buying a Camry instead of a Lexus.
Some of the features that make the Mainship a great boat:
Stairs, no ladders
Walk around the whole boat, easy access
Spacious flybridge
Flybridge overhang for walkway, to stay dry and out of the sun
Nice sized cockpit, with aft flybridge covering
Upper and lower helm
Starboard helm door for easy docking single handed
No teak (or any exterior wood)
Nita Core hull
Bathtub
Washer/dryer
Dual AC
And a host of other features.
And, a very popular boat.... for a reason.
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There's other boats that have been bashed. The Bayliner 4790 is a great boat, very reasonable with nice features, and don't know why it was discontinued. It's not like the old small Bayliners that probably deserved their reputation.
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The Volvo engines.... probably deserve their reputation and surprised that so many OEM use them. After three of them, I'm a believer. Parts and service are brutal. If they don't break, probably not a bad engine.
Lots of choices