Irks me slightly that they use a 3rd-party°° FrontDoor[0] (chat via Slack) integration to talk to potential customers, instead of a proprietary implementation of their own platform.

Yes, it's technically a different thing (user->company instead of user->user) — but if they're advertising an expensive JS chat service, I would expect them to be showing that off front-and-center as a way to communicate with their support.

[0] - https://frontdoor.im

°° EDIT -- The creator responded below, showing that I am incorrect.