Can anyone recommend a car insurance company?

My premium has gone up to £600 now as I am doing 25000+/year.
I have always gone through the same brokers (they have now been taken over by N&P) as I always thought it was risky sorting it out myself.
However, a quick trawl on tinternet found much lower premiums (one was with Swiftcover) but I'm a bit dubious about why they are so much cheaper. I can see that you might pay a bit more for using a third party but double seems over the top.
Are the cheap ones s**t and you don't find out till you claim?

Posted By: CB41, Sep 16, 17:29:22