I have been using Calendly and it starts to get costly when you have more than one service that you want to create.
As a beginner with online bookings, this is very affordable and it was easy to set up and import all my event types from Calendly.
Now I just have to work out how to get it to integrate with my Google calendar so that it automatically blocks out times when I have other commitments.
I am looking forward to using this and pretty sure my cohorts who are already actively taking bookings online will love it for the pricing!