Had mine done a few weeks back. Noticed it sagging front passenger side, then looked harder and noticed sagging in the back as well. They pulled the windshield, replaced curtain air bags. Headliner looked good replaced. They deeply gouged the dash during removal and scratched my hood wrap. Had to replace the dash and the wrap. Had to rework the wrap as the installer they contracted did a shit job on the under side. After 3 or 4 weeks and multiple trips it's finally all square. Man I hate taking her to the dealer but luckily my service manager made it right.
Hope it works out for you with minimal headaches.