I am so happy about my purchase of this calendly replacement. I looked over several similar ones here on Appsumo with different price points, but this seems to have more features than any others.

I use CNAME to use on my site. It has customizable confirmation messages, SMS and Whatsapp confirmations, and a lot of smart little touches in the menus that I am super-appreciative of.

Now I have a non-branded, super flexible booking system that I use daily and hope to use for a long time to come. Great value, great product!