I used to recommend people to use them all the time not now though.
I had my cars insured with Greenlight for at least 5 years, my escort was off the road for a while when I re insured it they quoted me a lot more than previously even though I had 6pts taken off my licence, then when I asked if I got a better quote would they match it the said no

and they were £200 more than Adrian Flux
They used to be very good but now the personal service they used to provide is gone
If you call and ask to speak to someone you've dealt with before and they ask you why?
Then once you've given them the details they ask can I help you with it........obviously not otherwise I wouldn't have asked to speak to the other person
and they have a min price for a policy.
and when you have a claim

lets not go there!
Try Adrian Flux for a quote