Since 2014, I have been building Bookafy in an effort to bring value and change to the manual scheduling process that exists today. Bookafy ( http;//www.bookafy.com ) automates the appointment booking process for calls, meetings and services... and is used by schools, wellness clinics, personal trainers, counselors, pastors and sales/support teams all over the world.
We started with a pretty large team of 8 developers. We are down to 3 now, and I am finding that we are much faster, more efficient and the quality of the work is much better. For this sized project, in hind sight we couldve and shouldve built with a lean 3-4 person team.