We emailed our small list of about 37 people, at the time, and from that we had 10 people sign up and 3 people pay for product! A few days later we are sitting at about 31 users and 4 paying subscriptions.
We've had 5 or so users join our private discord to ask some questions about the product, pricing and such. And a few have gotten on calls with myself and my co-founder to provide thoughts/feedback and suggestions!
It was a super fun launch and great that the folks in discord are generally happy with what they have and excited about what we are building and where we are heading.