have booking tied to the Tenant Domain name
as will email the branding is of ultimate importance to our customers. this can not be deployed to customers until the URL is something that is branded both in look ( theme ) and in the client URL. I would suggest a sub domain of https://booking.company.com/
I like the concept of the product and will be able to leverage this into new and expanded O365 subscriptions but not in it's current form.
Kevin Barrett commented