My friend's dad had one of these back in the early 80s. I remember he had a man-cave up a ladder in the loft. The ladder was really dodgy (which I suspect was intentional to stop his somewhat rotund wife snooping). He had a ZX80 sat on a desk, with a home-built wooden case. A beautiful and fragile computer which really harks back to the hobbyist PC hay-day. More here