I absolutely love TidyCal! I can make many kinds of bookings, charge or not, put a buffer of time between, decide how many units of a given event I will do in a day or week, and more. So affordable too.

PROS
* Easy to use
* Easy to integrate
* Affordable
* I can charge or not
* Paypal and/or Stripe
* Private mode if I don't want something on my public calendar
* Time buffer for travel time or just time between meetings

CONS
* There's a place to put a picture in, and I did that, but it doesn't show.
* Can't add branding, images, or videos to the main booking page.
* Can't have anything but center everything on the main booking page (though you can inside individual meetings)
* Can't have a numbered or bulleted list on the main booking page (though you can on individual meeting pages)
* Can't set universally unavailable times (like Calendly has), which means you have to put in unavailable times individually into each and every booking type you've made. UGH that is going to be a CHORE when something comes up. Bad enough setting up holidays in each booking type separately as was.
* Feature request button goes to a 404 page as of today.

I'm really loving it and happy with the investment. The pros far outweigh the cons.