for the money, Durametric really isn't much more than a generic hand scanner. it doesn't even do coding like activate/deactivate airbags or turn on the OBC.
check out VAG-COM for vw's/audis if you want to see what a pc-based scanner should be.
http://www.ross-tech.com/
using Vag-Com on a vw you can recode just about anything you can think of.
when Durametric is at the level of Vag-Com or the factory scan tool, i'll think about it.