The ability to add therapists remotely without having an office manager or receptionist in place! I love that it was easy for me as well since my business partner has been out of town all month long working at her new job (and will be until mid-January). There are some minor glitches here & there but nothing major - just little things like not being able to upload photos from our phone directly into appointments so we have had no choice than using email instead which can sometimes take longer then needed due time difference differences between us both living across country lines!! Also would prefer if you could actually see your schedule when adding clients rather they show up randomly throughout day/night etc.. It's great because now i don't need someone sitting around waiting everytime somebody calls wanting their next session booked.