Double ditto on water damage. It is a TT killer. With that said some damage [minor delamination and puffed interior seam] may be an opportunity to get an otherwise very nice and newer TT at a very good price. The current owner should have declared the prior damage and been specific when and how the leaks were repaired. I sold an 07 that had considerable front and rear cap delamination and floor damage. i had repaired the leaks [manufacturer brain farts] and them replaced damaged floor and installed new plank flooring. I advertised and sold the unit at at a considerable discount over the book value of the model. The buyer got a very nice unit with all the features of a much more expensive TT at about 60% the cost.
Not recommending that you buy a water damage unit, but its all in the disclosure, the documented repair, and price.