I've bought many apps on AS - more than I care to admit. Harmonizely is hands down the best one I've bought. We used to pay ~$250 a year for Calendly - but not now.
While in its current state it is missing a couple of features that Calendly has, I am 100% confident that Raf and his team will have those out in no time. I asked if they could remove a copy-text icon that looked out of place and BOOM! a short time later it was gone. That's support.
I bought 3 codes, may buy a couple more just to have for future use. Well done team, thanks for bringing this to AS.