It seems the consumer is happy with the new iOS System 9.0 from Apple.
Apple representatives said that 50% of all iPhone users have already upgraded to the new system. Apple said the new system offers longer battery life, upgrades to existing apps and some entirely software. If you received your iPhone from your employer or use it to access university email and other large institutions, you might want to wait a bit longer. Many IT departments are still looking at the new system from a security standpoint and may not allow access to their networks with iOS 9.0 devices until more examination of the system is complete.