I don't know any official numbers on the Sebo for reliability, but I do know that they are very well made and practically never break down unless heavily abused. Miele is also a very good choice. My suggestion is to find a dealer and try them both and then decide.
I also have to agree on the subject of the S4, unless it will be used exclusively for bare floors, tools, and maybe a small rug or 2. For even a home with a couple rooms of carpeting or many large area rugs, you need the electric P/N.
This message was modified Jun 17, 2008 by Vacuuman
