Wondering what exactly is "comfort glass"? Is it standard equipment?
I am in Ma. Also and have my windshield replaced twice under insurance. Both times the new glass looked exactly like the old, but I didn't check anything more then the tint on the top and that the rain sensor stuff worked correctly.
Just my opinion. ....give a real good fight to get it repaired to your specs, I have called the state division of insurance in the past, you can speak to someone and get questions answered. But if it comes down to having to pay extra, my opinion would be to take what they give you - they get scratched and cracked so easily this may not be your last.

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2004, X5, 3.0, 202k+