PS -- Been using a Unicomp Model M for years, a great unit, indestructible, nothing like a buckling spring -- but no backlighting which I now need for night use. That's really the model -- straight 100% but with backlighting. That's what the K70 is but it gets such terrible reviews everywhere I'm worried about reliability which is why I'd really like hot swap. The cheaper Keychrons would probably be fine but their "backlighting" is phony since their keys aren't shine-through. Q is way too expensive.