Honest reaction after a week of use: Refresh cadence means the data feels current, not 2-years-old. Bought it while building a movers & packers (maryland, united state prospecting workflow for United States. Minor cleanup needed but nothing major.
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.