These are not just problems taken/reported by people here at LYN, its reported on reddit and xda where there are few threads on the same issue with multiple users reporting of having those problems as well. and i've seen a few LYN users having the same issues as well, so im just listing them down here..
as for me, i dont face any of the hardware issue I mentioned except #8, when hard-pressing the home button. Sometimes when  hard pressing home button, it will vibrate as usual, then when the screen wakes up and you touch any part of the screen it will vibrate like you pressing the home button, even if you set all vibrations off..