Just got it together and went for a quick ride up the street. It is very rigid. Rear end feels amazing. Brakes are freaking shredding, sooooo powerful and great positive lever response. Formula T1s, get some! 350cr Forks not really feeling alive yet, I'm sure once they bed in the will have that Marz plushness. Wheels are nice and stiff, loads of traction on wider rims than I had before (mavic en321).
I am so happy with how it's turned out. I got everything I wanted in a bike, it is plenty tough enough to do me and it cost less than any of the bikes I was considering buying off the shelf.
Do yourself a favour, contact Stu from Defcon for a deal on a Banshee. He confirmed that if you tell him I referred you he will give you a discount on the spot! They was some up hiccups with the delivery, but Stu kept up the lines of communication and resolved it quite professionally.
http://www.defconcycles.com.au
Further proper ride review and analysis of the spec to come. Have to get some better pics posted too.