Technology The official PopSci Review Rating Scale A handy chart to help you navigate our product reviews By PopSci Staff | Published Apr 14, 2017 4:52 PM EDT Technology SHARE 0.0: Avoid at all costs 0.5: Barely functional 1.0: Little to like 1.5: Nice idea; lousy product 2.0: More bad than good 2.5: Middle of the road 3.0: Shows promise 3.5: Decent, but not great 4.0: Solid all around 4.5: Almost perfect 5.0: We can’t find a fault