930c owner and I experience at least 1 reboot per week. It typically occurs during cable TV and Amazon app. Additionally, the OS has been sluggish from the start but has improved slightly over updates. When initially turning the TV on, it takes approximately 10 seconds from the time it produces an image to the time it will register any other buttons pressed on the remote (ie input, home, etc.) For example, if I hit the home button immediately after I turn the tv on, it will not take me to the menu until it has registered that I pressed the home button and then if/when it does take me to the menu, it will take another few seconds to load the apps/items in the menu for me to navigate. After the initial power on, it responds much quicker but I still notice a slight delay. It just doesn't feel very snappy, like there is a slight lag moving from menus to inputs etc. I've never owned a smart TV prior to the 930c and have read from others that their experience with the responsiveness was pretty much on par with other smart tvs. So I thought the random reboots and sluggishness was typical of smart tvs in general. However, I recently picked up a KS8000 and the responsiveness is night and day. When you turn it on, it's on and produces an image immediately. The menu system is also immediately accessible and navigable. To me, the picture and sound quality is more important and the 930 is superior to the KS8000, but I wish it had the responsiveness of the KS8000. Not sure if the 2016 Sony models OS perform better?