I still have my issue 3 with the original rubber keys. I don't know if it still works, I'm not trying to power it up without a recapping.
While I have to agree that the design is fantastic the fact is that I never liked the plus keyboard.
I don't know what to expect, the look is good, but how about the feel ?
100% compatibility is good, but I'd like to have a mode with a modern BASIC, something like SpecBAS. That could make it useful outside the nostalgia market.
SpecBAS home page:
https://sites.google.com/site/pauldunn/disclaimer: I have no relation with the SpecBAS project.