The keyboard is fine, nothing to write home about. The top plate is in 6 separate bits (on the 16 in anyway) and they've got a bit of play, it feels a bit awkward to me, but the trade offs are worth it to me.

Software/firmware has been surprisingly well thought out, including a very clear picture if you try to boot without all the pieces installed.

I've had one weird issue with the uefi boot, but that was due to using an old install media, I think.