Picked it up for cold outbound. ROAS improved roughly 30% versus the lookalike audience we ran before. Bought it as part of a wider australia kia locations expansion into Australia. Otherwise no complaints.
Good to know what worked and what didn't, the email/LinkedIn coverage you mentioned is on our list for the next pass. If you want the gaps fixed sooner than the next refresh, open a support ticket and we'll spin a one-off pull.