I don't think I've ever seen reliability data for Sebo in consumer reports. Sebo has such a tiny market share for canisters, that insufficient data is available. I think Miele canisters have done extremely well in reliability as of late. Rainbow and Kirby tend to be at the top for reliability for canisters and uprights, respectively.
For the record, CR only uses self-reported survey data for their reliability reports. The information is of very limited value. I believe CR uses the survey data to estimate reliability during the first 4 years of life. Given that many disposable bagless vacuums last less than 2 years, and models change frequently, CR doesn't really have the luxury of looking at long term reliability.
As one who expects vacuums to last 15-20 years, the estimates don't seem particularly helpful.
The smart tyrant writes his own story to ensure that it is favorable. The lazy will repeat lines from the book without fact checking.