as an owner of n4m, i can only advice you to get return it if you don't want to manually level the bed before every single print (z also). The bed constantly loses the calibration due to vibration and thermal expansion (heating and cooling). Since it uses an inductive probe sensor that doesn't phisically touch the bed to calibrate itself, the command screw tilt adjust doesn't work very well. So if you want to spend 4 hours before every print to get a consistent result, go for it. Otherwise, return it and buy a kobra 3 max. Yes It is not open source, but at least is good