I have a 2011, still don't said the streat names at all. The Nav system pretty much suchs, in the 2011 version, the Map DB from Navteq is 2009... so is 2 years old, and in top[ of that, the total amount of POIs is around 2 million, that is almost 3 times less than Garmin or Tom Tom 1 year ago.
So, I am carrying my Garmin with me, when I can not find a POI in the CX9 Nav system, I look for the address either on my WM7 or in the Garmin and then use the Mazda Nav