Hey now, I've been on Erie insurance since I started driving, and they've always treated me well.
Erie also puts a hell of a lot of power in the hands of their local agents though, it may make a tremendous difference who you go through.
When I totalled my car in 2005 (no-fault SVA), my local agent had me handled and done within 2 days. I literally had nothing to worry about except how long it took for the third party insurer to cough up what I was upside-down for, can't recall the term. I even fell under a first accident forgiveness clause, which as I read it returned this year because I kept my nose clean.