if you want first hand experence with USAA i can offer up some. I was with progressive.. just for my civic 99 ex coupe (stock as far as they know) i was paying 455 a month. Yes i have a shitty record whatever thats just a baseline figure.
We consolidated our insurance (me and my fiance) with usaa (she's a navy intel officer at ft meade MD) My 99 Jeep Grand Cherrokee, my civic, and our beater 92 cavalier is 102 bucks a month she's 25 im 24. The civic also has 3,000 extra insurance for a fraction of the aftermarket stuff.. yeah it's low but it will get me up there in the right direction if anything (God forbid) happened to her. (knock on wood).
Cliff notes:
USAA >>>>>>> progressive
edit: forgot to add, do you know how nice it is to have 400 dollars extra a month to put into the civic now? lol