I tested it immediately after purchasing and ran a cold (semi-cold) outreach campaign with the help of Closely. I sent out slightly above 1000 messages and got a close to 20% response rate while sending 1 single targeted message. Each (minus 1 or 2) resulted in a meeting.

What started as a test came to be a month full of daily 3-4 calls.

I can only recommend it.

Any lacks? I/we are still waiting for the enrichment and additional confirmed features for appsumo users which is still unclear when, how or under which form will be available and that would mean 5 stars without any doubts.

I'd give it 4 because the lack of these features but I'll still go with 5 as they confirmed they'll find a way to make it work for appsumo users to. (When.... we'll see)