Had Allstate for years, and they kept raising our rates, year after year, though we didn't have accidents, claims, tickets, nada. Finally got fed-up and went to Geico for big savings. Switched back after a year when some PA insurance regulations changed (supposedly) and Allstate was competitive, again, but that only lasted a year or so, then we tried to insure our 16yo driver (two years ago). We switched to Geico, again, to save boatloads. Been there since.
TJR