If you're looking for an easy way to take subscription payments for your services or products then Book That In's built-in subscription option is an easy and intuitive way to automated bookings and payments via your website.
See answers to Subscription FAQs here.
See how to set up a monthly subscription for a weekly class here
The following video tutorial walks you through how to set up a Subscription, including the options to set a free trial period or a delayed start date: