In Missed.com there is an option to add your customers' reviews about you, your business, meetings or etc. The reviews give information about you to other clients who are going to book an appointment with you. Customers' Reviews can be added only by you in your workspace. 

As an owner of the workspace you can add the reviews in Settings → Booking Link → Reviews tab. Note that, you can't add reviews until you filled out the appointment form. Learn more about creating Appointment form.

These reviews will be added to your shareable booking link.