that z auto align is pretty cool. :-)
what bed probe are you using ?
Or does it work with the sensorless homing ?

Also how many spare boards have you now got ?

I've got one of those cubes around somewhere.
Yours looks pretty good, mine was just to see how fast i caould print one, think it was a touch under 2 hours.
It's not as smooth as yours, but I doubt yours was printed at 150mm/s ;-)

Plus mine was pla - haven't played with petg on saffy.
Buty it'd look like a spiders web on alexa. petg prints well,m just a bit stringy. Fortunately the strings file off really easy.