El Cap is running fast, smooth, stable and all my apps work without issue - Creative Cloud, Office 365. iOS 9 is running great on my iPad Air 2. At the same time Windows 10 is running like a dream in Boot Camp. It's the first time that I have been so happy with operating systems so close to release. There is no reason for me to go back to Yosemite, iOS 8 or Windows 8.1. Thanks Apple and Microsoft!