Apple has gave his best to make iOS 9 wonderful, but dont forget the iOS 8 release which was the most buggiest update ever. It would be recommended to install the beta on secondary device. Also, in the new build you may encounter a permission screen for removing some app if you are running our of storage, but it will reappear after installation is complete.
So, far my experience with iOS 9 features was good and I am excited to see the full version release on my iPhone 6. :)
Below infographic for Nine Hertz will give you complete idea about the iOS 9 release.
If you find it interesting then feel free to share or comment below.
Gaurav Sharma is a founder of Antipull & a Digital Strategist at Nine Hertz, a Mobile app development company and a Marketing - Tech writer. He has expertise in SEO, ASO, CRO, PPC and other parts of Online Marketing fields. He is an enthusiast and love to explore new stuffs. You can check him out on Facebook and Twitter, Google+or mail him personally.