^^^^
Agree with all the above. My experience with my TT has been a continuing series of failures due to poor assembly and substandard materials beginning from the day of delivery.
At a minimum, bring an experienced TT owner of at least 5 years. Take your time looking through the camper for defects. Check caulking (yes even on the roof), check tires (ours were already partially dry rotted), check basic operation of all systems. Check fit and finish of interior and exterior. You are unlikely to want to fix them on your own later. Keep a list of all defects in the first year and plan to take them back to the dealer to address. We had a list probably a dozen items long.
Then after the warranty expires, plan to routinely spend time and money on continuing repairs. Expect to educate yourself on maintaining critical systems including brake adjustments, bearing lubrication, roofing maintenance/general caulking and suspension joints.
Then go have fun.
