The main issue is that it simply doesn't want to power on. The power button does not function at all. You cannot turn it on by the button. The way I've gotten it to turn on was by clearing CMOS, draining all power from it, and then reconnecting to power. It will show power lights, turn off, then back on. 50% of the time it will display after that. Once it's booted it will work perfectly but cannot be turned off by the power button.
I removed this piece which contains capacitive controls for volume, WiFi, and some other things. It also just had a piece of plastic that pushes down on the power button soldered to the motherboard.
With this piece removed, the power button actually functions. The laptop turns on and off with the press of the button. However, it still doesn't post half of the time.
When I plugged this back in, the power button again doesn't work, but now the capacitive controls do not light up and the power led on the chassis or illuminating the power button do not light.
These issues seem very random and are confusing.
Does have some other issues, the screen latch is a common flaw on these and mine does not work. The left and right click buttons have a degraded rubber coating. The track point works but the rubber bit is missing. The keyboard illumination light at the top of the screen only works intermittently. The screen, although very nice in many ways, is very dim. Oh and the BIOS is locked with a password stored in ROM. Seller doesn't know it.