The idea behind Speedrenting is for you to bring along all the people who respond to your Trademe ad. Then if it doesn't work out with you they can meet someone else right there. 

"Cool flat. Great flatmates. Come and meet us at Speedrenting next Wednesday Mighty Mighty/Juice Bar about 6:30 or 7"

Or if you're looking for a place to live just turn up at the bar.

Become a fan then link your trademe ad and share with other fans of Speedrenting.