[natchy]

Not OP but I've used Crystal in production at 3 companies: Qualtrics, InVision, and my own side-company (~40 employees) which I briefly mention in this podcast[0] from a few months ago.

Been using Crystal for about 5 years.

[0]: https://www.indiehackers.com/podcast/166-sam-eaton-of-crave-...