Cian8, why don't you do the ignition course. It doesn't cost you anything and if you get a 40% discount it beats your Quinn quote and you're with what appears to be a more reliable company. Hibernian also give another 17% for no penalty points. I did the ignition course a few years ago and for me, female, 29, 5 yrs no claims with a 99 astra I'm paying €300 fully comp for both me and my husband.
I don't think there's such thing as the best company for quotes cos every case is treadted differently. A few years ago my husband got a couple of hundred quid knocked off his quote when he added me to the policy. At the same time a friend with the same company got €30 added to his policy to add his wife, same ages as ourselves, she had a year's extra driving over me, no claims for any of us, etc. Can't see why it would be different but that's the way it goes.