Not me, I'm too cautious! I always wait a couple of weeks or more after the actual full release to make sure there are no issues that need to be fixed. Even though they beta test the new iOS for 3 months are more before releasing it, there are still cases where they have had issues. Last year with iOS 10 T-Mobile users had issues the first day or two until Apple and T-Mobile got the issue resolved. You might think beta testing would find the issues, but a few usually manage to stay uncaught until the actual release.