I finally unwrapped my Autel MK900-BT scanner, since I may need to program a module, and that is now virtually impossible with my Tech 2 (thank you GM). My first impression is that it is a nice scanner, ruggedly built body and carrying case, large touch screen, easy to read menus, logical in the progression through the screens, and provides a fair amount if related info (not just a code number). The fact that the OBDII dongle connects to the scanner itself through Bluetooth eliminates the wire that always seems to get in your way. The fact that the scanner connects to my PC and network through Wi-Fi, I don't need a long Ethernet cable to program with the scanner.
One BIG surprise, though, at least to me. I contacted their Support team with a question related to firmware updates, and they replied telling me that since I purchased the scanner through Amazon, and not directly through them, I was not eligible for their Support services. Of course, they are perfectly happy to take my money for any software updates that may be needed in the future. I know that this situation is not unique by any stretch, I just never thought about it, when purchasing this specific scanner.
Live and learn.