Is there a member demo area for that add-on that doesn't require you to sign up for it?
When I visited this page: https://alignflow-demo.squarespace.com it doesn't let me see (feel?) what the membership area is like. The video is nice but still doesn't show what the membership area is -- does it run like a forum? Is it just separate pages? What happens from your client's pod?
Maybe I'm missing something?