I have the 9.7 pro and if I did upgrade, would probably just do the 10.5. The 11 is so nice but that price tag and with AC+ and the keyboard, that’s as much as a MBP. I mainly just use mine for web browsing, watching videos, multi tasking, etc but nothing processor intensive unless I play a game here and there. Don’t think that extra $150 is worth it unless I’m going to take advantage of those new features.