I just finished installing on my 2012 edge. Took about 25 minutes. Yes there will be a black screen for 10 minutes or so, don't be alarmed. I haven't had a chance to really play with it yet, but I am happy to see the the song info is now back on the home screen! Also, selecting a quadrant does seem to load faster. After work, on my drive home, I will play with the voice features to see if there are any major improvements.