I recently had a look at a new Chausson 640 which has a large electrically operated drop down bed. I though the layout and use of space was fantastic but I did go away wondering how reliable these beds are after a few years of use. (The table was also electrically operated). Chausson have been using them for years and the early ones did appear to have issues but I haven’t noticed many problems being reported recently. Has anyone any experience good or bad?