How we score products

Every product is scored on four criteria with published weights.

Four criteria, one formula

Each criterion is scored from 0 to 10. The overall score is a weighted average, rounded to one decimal place.

Criterion3D printersDIY and toolsHome appliancesWeight
PerformancePrint speedPower and speedPerformance35%
QualityPrint qualityBuild and durabilityBuild quality25%
Ease of useSetup and ease of useHandlingEase of use and cleaning20%
ValueValueValueValue20%

Reading the score ruler

The ruler has a major tick at every point and a minor tick at every half point. The orange fill is the score. Above 9 is excellent, 8 to 9 is very good, 7 to 8 is decent with clear drawbacks.

When scores change

Value scores are revisited when prices move significantly. When a new version ships, we update the old review and show the update date at the top.