The only real Issue I know of with OK 117DBL is the slide motors. Mine has had the rear slide motor replaced before I bought it used and then the main slide motor housing broke in half on me on a trip to Yellowstone last summer. The motors are hard to find and run from $575 to $800 depending on where you find one. I really like mine but my wife does not. She prefers our Fifth Wheel for our family of four and two dogs. It is heavy, no doubt. With just stable loads on my 2011 F-350, it sat very level side to side but the bumper dropped alot. I added air bags to level the front to back. With the four of use we were able to spend a week at Yellowstone before needing to add water or drain the tanks.