Love them - I have a 31, bought it new, just before the 34's were released, twin Opti's on it. Engines are gettig a bit long on hours now, will likely repower soon. Not a squeak in the hull though, solid as a rock. Many many hours offshore Key West in winter, stuffed it thru a wave or two, jumped off the back of a wave so many times I lost count, the kind where you see the big hole too late, turn to your buddies and have time to look at each other! Not a squeak or rattle in the hull.
Fast enough, enough range to stay out all weekend if you like. Standard tank is 200 gallons, most have 2 25's. Don't fill those unless you really need them, and burn them first, they are pretty far forward, slow the boat and increase full burn. Boat with 2-3 guys, 200 gallons fuel, plenty of ice and gear, will get 2 mpg, at 4200-4300 rpm cruise, which is flat moving out.
Negatives - bilge pumps and live well pumps are the devils own to access. I finally added a terminal strip on the inside of the upper transom, accessable thru a top hatch, and left a pull cord in it. Now, to change a pump, unsnap it from the base, pull is out of the lazarette, swap the hose ( left them long ) cut old wires, use them to pull extra long new wires back to terminal block. Fifteen minutes, rather than the two hours contorted on your side/back upside/down in the "hole".
If you use the front fish well for fish, get a macerator pump on it. The hose is too long and stops up with... gravy, if you try to drain melted ice out of it underway.
Live well, works OK, access is way too hard underneath it.
Plenty of speed, enough range, makes these great boats for the TX coast. I also ran a 34 Contender ( comparatively slower, wetter in a head sea, had HDPI yamahas, not my favorite, because of fuel mileage ) back and forth from Ft Lauderdale to Bahamas and down to Key West. Friend borrowed it to run back from KW on vacation with girlfriend, just as a decent norther blew in mid summer. Eight hour, miserable wet trip - she left him for that, the next week!
Also ran the Donzi ( ho hum), and was a guest on Yellowfin( fine boat !, but heavy).
Fountain, is the real deal. Not throwing rocks at the Contender or Yellowfin, but my personal preference.