Unfotunatly I have not used it so cannot be of much help in the process of assessing it as a potential model for you, but I would also be interested in hearing others thought on the subject :)
I'm looking for a format for the meetings with interested parties... so I can get the right information from them. Mainly I'm concerned with:
1. How to assess the current position, based upon the pre-defined checkpoints - what is the best way to present these for discussion?
2. The best way to ascertain their requirements (where we want to be) from the meetings.
Just to clarify, I do have the book 'Test Process Improvement' by Koomen and Pol, so perhaps I've missed the section in there - I'm working my way through it at present.