Appears this deal is back on again (prev.) - $50 credit for you and a friend/referral, when you purchase a new policy (and it's active after 30 days)
Obviously vehicle, location, and driving history will produce different results. YMMV.
For me, comparing against 7 others (AAMI, Bingle, Real, Budget Direct, Allianz, Woolworths, RACV) Huddle came out the best, by quite a good margin. Throw in the $50 credit, and it was an extra bonus/saving.
Random referral codes just below, or via https://www.ozbargain.com.au/deals/huddle.com.au
Came to $2000 more than my current budget direct insurance.. wow.