If you have upgraded your original iPad Air to iOS 9.2.1, what are your experiences? Do you wish you had stayed on your previous iOS? I have the original iPad Air running iOS 8.3 and am considering upgrading to iOS 9.2.1. And for the future if there is one sticky somewhere, either in the MacRumors forums or elsewhere, that I can refer to for people's experiences any time a new iOS is released, please let me know! I tried searching the MacRumors forums and the Internet at large but I'm having trouble finding the info in one place. Thanks in advance everyone!