I just upgraded to 13.10 . i would like to say that it took an unreasonably long time. I was asked if I wanted to update, and I said yes. I went away and came back, expecting an updated computer, and it asked me again; and again; and again....... Granted, the questions were not all the same, but they were the same old, same old.. It took me almost 24 hours to complete the operation, coming back several times to find the machine still at it when I wanted to work. I do not want to sit and watch the upgrade, so next time can you please ask all the questions up front and let me go away till it's finished.
Just a thought