Current Mirage OM series vs. Msi series speakers?

I have owned a pair of Mirage M3si speakers for almost 10 years. Numerous components have come and gone in my system during this 10 year period but I have never felt the need to change or upgrade my speakers. Recently I read some reviews of the OM-5 speakers and the reviews seem to indicate that the OM-5 speakers may be better than the old M1si speakers. I heard the first OM series speakers (the OM-6 speakers) and I did not like them. I thought they were a real step down from the Msi series. Has anyone changed from the Msi series to the current OM series (the OM-5, 7, and 9)and felt that it was a real improvement?