Most of CR's top picks have had problems.
Their last dual flush #1, the Gerber Ultraflush with the WDI EcoFlush was a disaster.
They Champion that they loved so much was redesigned in the first few years to change out the failing tower flush valve. They then plugged up a TOTO, shot video of it being plugged and acted like it came that way out of the box. I have no idea where their heads are. I thought the same thing when I worked in a bicycle shop in the 60's. Their picks defied logic.