Kirby and Consumer Reports....
..CU had the principle that they would not rate an upright unless it performed on rugs much better than the best straight suction tank/canister. According to them, Kirbys of the 50's 60s and 70s did not do that.
CU did not pay much attention to all the attachments of the Kirby except to note that there were, "not without merit."
Although they had occasionally tested Kirbys, and now the G series is considered by them one of the very =best= in terms of carpet cleaning, the earlier Kirbys did not measure up to CU's upright standards.
CU also had a big problem with Kirby sales methods and, in fact, the entire door to door sales method in general. No doubt there have been some blunders here and some definite horror stories. However, it always seemed odd to me that they never complained about Electrolux and always seemed to top rate them. [Not that they shouldn't have been top rated, Electrolux were always among my favorites] But, I sold for Electrolux and know that among my fellow "Electrolux Home Cleaning Specialists," [hyperbole for a door to door vacuum salesperson], there were very honest and forthright folks, and some very shady characters as well. I always felt that CU gave certain direct sales companies a bad rap for this stuff while dishonest and shady business went on in all vacuum markets, sometimes even in retail sales. Anyway, CU seemed for a long time to have a big problem with Kirbys on many fronts.
In the past, these negative ratings, or lack of any rating often got CU many letters of complaint from loyal Kirby fans who felt that CU was not fair or accurate in their assessment of the Kirby. In fact there was one issue when CU actually felt the need to explain themselves on this score.
It is worthy of note, however, that when they did mention Kirbys, CU always made a point of acclaiming the remarkable workmanship of the Kirby. In recent years, since they have bothered to gather data on repair history, CU has consistently found Kirby to be one of the best, if not the very best in terms of repair history.
If you look at the articles posted in the consumer articles section of our web site, I believe you will find some of this informaiton there.