My old auto insurance company, Esurance, messed up and forgot to file a notice with my state to say that my policy was paid up, so the state came down on me like a ton of bricks. Naturally I canceled the policy. Now it turns out that Esurance treated the cancellation request as a request to renew, and charged me.
Another data point: the part of their web site that you only see once you buy a policy and try to sign in doesn’t work in Firefox. The page doesn’t even load.