MSN adCenter Beta Quandary

A few weeks back, one of my MSN accounts was accepted into the new adCenter content network beta test. This particular client does exceptionally well with Content Match in Google, so my basic assumption was that I would see at least some improvement in MSN. Despite the addition of their content network, I have not seen any progress in this account.

The changes that MSN has made to the actual adCenter interface are excellent with this beta test. But optimized functionality doesn’t always mean optimized performance. Aesthetics aside, has anyone else had positive and/or negative results when using MSN’s new content network?