So my iPad4 is running 9.3.2. I want to update it to most recent (not sure if it's 10.2 or 10.3). Can you please your experience on using this device on iOS 10.x?
On my Air 2 it's flawless as day 1 was on iOS 8. On a iPad 4 your performance will be essentially identical to iOS 9 if not slightly better as they definetly polished up the os a bit. Definetly do a clean install though and do not restore a backup to avoid any slowdown or glitches.