I have 3 kids but have never purchased a harnessed booster. With my oldest who is 7 she stayed in her convertible seat and then went straight to a high back booster that works with the seat belt.
Now I have my almost 3 year old who has about outgrown his convertible. I need a harnessed booster for him and then a new convertible for our 10 month old.

I saw a disturbing report from consumer reports that 5 of the top harnessed booster I had in mind are really not as safe as we thought. So I am now second guessing myself.

Which harnessed booster do you have?

ETA link to the report.
https://www.consumerreports.org/toddler-booster-seats/child-car-seats-from-britax-cosco-graco-harmony-break-in-consumer-reports-tests/