We carry all of our personal insurance and a large chunck of investments with USAA as well. When we are in a bind, they are there, and with fantastic customer service to boot. Might not be the cheapest auto insurance out there, but they have taken really good care of us.
Thanksgiving eve, three years ago, we were on the road headed to see DH's kids in SC...3 hours into a 7 hour drive, the alternator crapped out on us and left us stranded in a little bitty town and no options. USAA paid to tow us all the way home....it was about 180 miles.
Just awesome!