I receive my new Miele Callisto today . I must say it work better than any vaccuum I have ever have . my only problem be that after spend $ 900 on a vaccuum , I would think I could get a operating instruction booklet specific to my vaccuum . not true . I be send a generic booklet for the 5000 series . most of the picture and instruction do not match . in fact , if I have not already have a canister vaccuum of a different brand , I would not be able to figure out how to put this vaccuum together or use it . but , I give it 5 star because it be a really great vaccuum .