Keyboard looks great but is useless to type on.
There is no tool to adjust / calibrate the EC switches unlike their cheaper boards.
As time has gone on I have lost the ability to type with about 25% of the keys. I have taken the board apart a few times to try and index or reset the membrane and springs on the sense pads but this only helped fix one or two keys. I have re-flashed the firmware a few times thinking that may help (it does not)
Niz support will not contact me back either. Do not waste your money on this keyboard. This is my third Niz Plum style keyboard, and the quality of them has decreased with each iteration. The 2021 Iteration of the Plum 87 case arrived broken and cracked more over time. This N87 is a 350 dollar paperweight.
The following keys do not register 100% of the time unless you press the keys so hard the PCB flexes. they have anywhere from a 50-75% chance of miss in normal typing even when fully bottoming out.
123QWERASDFZXCV left Alt, left Super, left Control, Left shift, left tab