>> only to find out later there's no way to add an Outlook calendar.
I haven't even looked at it but seeing this in the comments means I can't use it. Many (most?) of your target "elite professionals" are running Outlook in the enterprise.
That's true and one of the reasons we're keen to add an Outlook integration ASAP. We're a tiny team of five so building an integration with Google and Outlook from the get go wasn't feasible.