Based on the chat here and the quick responses, I full stacked. It seems like it may be a great deal down the road, but it's going to happen without me as I am going to refund.

The custom domain (cname) seems to come without an SSL cert. Messaged support, no response after 3 days.
No way to choose which Google calendar, I have several calendars. Again no response from support.
Appointments are max-length 60 minutes. No response from support.
How to change your availability is unclear.
Numerous spelling and grammatical errors.
Page loads have frozen or partial loaded many times.
And more

Good luck, but I am risk averse in my booking system. I'm out.