Just got the board this morning! It's glorious! And gloriously dirty. There seems to be a few spots of rust on the lower right corner of the metal faceplate and towards the center. The switches all feel great though!
And it has seem to be yellowed. But there is also a layer of dark grime on all of the keys(possibly soot or something), I'm not sure how much of the discoloration it is responsible for. I'll do a bit of cleaning and disassembly, but not sure what to do about the rust. The blue paint seems to be chipping in those areas.
Not sure what type of switches they are either: (Note, the dent in the keycap is not from me pulling it, I swear!)
In any case, @Chyros, let me know when you'd like to borrow it. I'd love to see a video on this board