Just updated my IPad with the new IOS9. It takes about an hour and has a few new features. The first thing I noticed was the improved keyboard. There are more, but I haven't tried them out yet. On the news tonight, they said that some people were having trouble downloading, but mine worked fine. Just takes awhile.
We downloaded ours with no problems either, Dave. It did say it would take a while, so I just started it on both the phone and iPad, and went to bed and let it do the upgrade overnight. We have noticed a few differences as well, and so far, everything seems to be working fine. It might have been that there were just so many people trying to upgrade right at first that it took longer to get things working right for the first few days.