I have actively collected all the vacuum cleaner issues of Consumer Reports and Consumer Digest.
The most interesting point is that history always proves them wrong (with one exception).
In 1936, CR stated that the "Best" cleaner you could buy was the GE AV1. They went on to list the Premier as second best, etc. until you got to the end of the recommended vacuums. The lowest rated cleaner was the Hoover 150. While they did state it cleaned very well, they considered its "outrageous" price ($89) to be complete unacceptable (yet the $69 Electrolux model 12 was just fine).
Today, I can stand the GE AV1 next to the Hoover 150. How did they hold up all these years? The Hoover 150 is still one of the best uprights ever built, and the GE squeals to high heaven with their cheap ball bearings.
Through the years, Communist Reports have always stated that the Rexair (and ultimately the Rainbow) was unacceptable due to 'shock hazard'. I've never met anyone who got a shock from their Rexair.
For years, they rated the Hoover Self Propelled Windtunnel as the #1 cleaner, along with the Kenmore canister. Both machines were very problematic for the consumer and history has proven their were much better machines available at the time.
At the Vacuum Collectors Convention (held each year) here at the new Vacuum Museum, we sometimes take the old Consumer Reports articles, and pull all the vacuums they 'tested' then, and Re-Test them today - does history show CR was right. With just one exception (1970) the answer is a resounding NO!