Used it for a focused territory. ROAS improved roughly 30% versus the lookalike audience we ran before. Bought it to underpin a United States dietitian doctor campaign. Decent value, would tighten one or two fields.
Thanks for flagging the small gaps, we hear you on the gaps — the next monthly refresh tightens those exact columns. Open a ticket via the Support tab and we'll prioritise the columns you flagged for the next refresh.