[Dougeefresh]

I currently have GEICO as my auto insurance. I got a quote from Liberty Mutual because someone I know knows someone who's an agent and promised a better rate. Well, with the exact same coverages, the rate was about $64/year lower than GEICO. The agent also said that LM has a partnership with BMW that they will only use BMW OEM parts for repair.
Is there any truth to this? $64 difference doesn't matter much to me. But then again, I am thinking if my M3 needs a repair, are there any generic or non-OEM parts that can be used for M3 repair anyway?

I've done some research and there are some nasty reviews about Liberty Mutual so I am hesitating.