I just signed up with them last night to set up a wallet via Alby Hub. All I provided was my e-mail address, and then I linked my Nostr account. There was no other KYC aspects (unless I am ignorant of what the term really means, in which case just let me know). The membership does of course have a monthly fee and I think that's where they are going to be getting their income from. As far as setting up the Lightning node/channel (I'm still learning this part), I had to pay to do that initial setup but it didn't seem excessive to me, and now it's working great and I can send and receive and have a nice interface to manage it all from. Just wanted to try to give my perspective as someone brand new to Nostr and Lightning. So far Alby's process has made everything the most straightforward for me out of other options I've seen.