2009 350 SE TS. Make sure your steps are up before driving off, I didn't once and had to replace a good portion of the assembly.
New V-10s have had the spark plug problem fixed with a thicker head.
If your slides or leveling jacks quit working, there is a circuit breaker under the steps to the left. You'll see a little flag hanging down. Just reset it. Had to replace our microwave. Recommend a convection/microwave as a replacement, you'll never use your oven except for a bread box again.
Get you self a 50 amp extension cord, it's easier to handle than the factory installed one.
Tennis balls under your windshield wiper arms save the wipers.
If you plan on a towing toad, get a hula skirt instead of a solid mud flap, saves gas.
Switched out the winegard antenna for a new Jack antenna that I don't have to remember to crank down.
Good Luck