It takes all sorts to get a Best Buy, Oli. Whilst collectors sometimes know better, not all homes have medium short pile or quality wool. Whilst I agree with Which mainly that Miele do know how to make vacuum cleaners, I don't agree with a lot of their findings.
In 2011 they slated a lot of Miele cylinder vacs because of a difference of filtration quality. It was too confusing and not fairly judged.
But at the same time, the SEBO K and D are not exactly available everywhere, until possibly this year with Argos and John Lewis re-stocking the brand. Same with the Felix - only a fair selected number of sellers have the Felix on their books, compared to the more widespread availability of Miele and other brands.