Wow, CO has really gone for the throat of NW/DL with these. In one fell swoop they addressed many of the critical problems of the CO program, especially 50% EQM on cheap fares bought off of CO.com. Their award chart is reasonable (much better value than NW/DL) and gives access to first class on Star Alliance carriers at a reasonable premium over business.
I am planning a status match as soon as I have my Platinum status secured on NW/DL. Hopefully CO will negotiate decent reciprocity with UA/US (Economy Plus access would be amazing...).