Needed it for a fast launch. Encoded UTF-8 with no character-set surprises in Excel. Bought it as the seed list for a kindergarten school outbound push in Australia. Connect rate could have been higher with cleaner mobile numbers.
Appreciate the write-up, 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.