Extended Warranty from CornerStone Auto - any thoughts?
 

Hello,

I'm buying a 2010 E60 535ix sport/automatic 45K. I have an option to buy an extended warranty from CornerStone Auto insurance (for about $4.5K, covers up to 4 years and 125K).

Does anyone have an experience with them? Good or bad, or any other thoughts?

Any tips and suggestions are very welcome.

Thanks,
Alex