What it gets right
The thing nobody else has shipped is a working class-leading capability. After six weeks running it side-by-side with the next two in the ranking, the gap on this single dimension is meaningful in a way the spec sheet doesn't really capture.
We tested this with three independent operators, each given the same brief. All three rated List Detective: Free Email List Checker the strongest on the dimensions that matter most — that's the bar nobody else has cleared at this price.