You are right to be concerned. Ask your dealer/installer how many of these windshields they have actually replaced. If they say none, walk away. You will be the "on the job training program" for the people doing the job. If the dealer plans to farm it out to a windshield repair company, ask the same questions. This car, as we all know, is in very limited use, and I am afraid qualified repair "persons" for things like the windshield are going to be few and far between.

The very best of luck..

John