Get a bmw tech to install it as per bmw repair instructions or you might be sorry. I will stick my neck out there and say "run away from Safelite". One guy showing up at your house and using way too much urethane and puts it on the body instead of the glass (completely wrong). Then procedes to install the glass all by himself. The windshield is a structural part of the vehicle and needs to be installed as per the repair instructions.
Just my 2cents

btw. If you are persistent, insurance will cover it at near dealer price. It is an uphill battle though.