After having my Surface Books for a few days, these are the problems that we’ve run across. When the computer is coming out of sleep mode the mouse doesn’t respond. I haven’t figured out a way to get the cursor to show on the screen unless I reboot the Surface Book. This also happens on my wife’s Surface Book too. When in the middle of writing with the pen, the screen lost all connectivity with the pen. The touch screen stopped responding at the same time. The only way to get it back was to reboot the PC. I’ve had a few BSOD’s on my Surface Book too. It seems to be when attaching/detaching the keyboard from the screen part. I’ve only had the BSOD on one of the Surface Book’s, my wife’s has been pretty stable. I’m not too happy about the Battery life either. I seem to only be getting about half of the 12 hours on them.