I have the 8600 and I wanted it for screen size and the wireless CarPlay. I had an issue with the first unit from Crutchfield, problems with wi-fi connections. They swapped me a new 8600 NEX and had no connection issues after that. Til last week I updated my iphone iOS 15,4,1 and then notice they had released Firmware 3.0. After trying to do the firmware update on the 8600, I have had nothing but connection issues, so I am waiting on Apple to come up with a bux fix. So the software has been a nightmare for me. Not alot of info there for you but that's about all I got. the wireless CarPlay is pretty nice when it works right. Nice screen on the NEX 8600- 10.1 screen