We've had our 2000 340 for just over 6 years. My biggest concern when I was buying the boat was how ugly I thought it was. But, the price was ridiculous and it was equipped great, so I figured I could get over it. A good enough looking hull and deck, but all the different shaped windows on the cabin side were just way too mismatched and distracting.
Now, I think I 've got the best looking boat on the bay and don't regret buying it for a second. I can only compare it to other Hunters, the 26.5, 280, 320, 326, 36 that I have owned or used through Sailtime. But it is the perfect size, cabin and cockpit, for what we do with it, over night or weekend cruises, day sails, and races on the bay with anywhere from 2 to 8, and never feel crowded.
Find out what prop it has, 3 blade trumps 2 by a long shot in currents and long motorsails. I have added dual fuel filters with see thru bowls, the active filter bowl fills with water about every hour of run time (here on the just slightly humid Texas Gulf Coast). I used to change the single filter under the quarter berth about twice a year, maybe 30 or 40 hours, where did all the water go then? The yanmar has had zero issues since I've been draining that water regularly.
I've also moved the batteries, just replaced and moved the charger, and plan on replacing the head this spring, And new sails, just got them, only been out once with them so far.
We've had no real problems that are specific to this particular model or make that you wouldn't find on most other boats of the same vintage and price range. Lots of photos of the boat and mods on my profile page.
Here's our great looking 340 from a race last month.