I've put about 10 runs on mine so far and it's been awesome. I wore out some bearings but it was used so that could have been previous abuse. Parts are cheap for it and I love 1/8 scale in general. The D8T is a GREAT basher, that's all I use mine for right now. The arms are solid plastic and like he said, a 4mm chassis. It has all the typical strengths of 1/8 scale and then some.
Mine on a ballfield:
http://www.youtube.com/watch?v=Vmqn6vUZU-o