The ease of use, all-inclusive features and how customizable it is for our office! I wish it had more templates or additional modules that we did not need. But, if you are looking for a simple software, this is perfect. It has all the features we have been searching for and its easy to navigate through as well. We were searching for a way to keep track of patient info, appointments, referrals/calls, billing, etc. This is exactly what we needed. I like that it's user friendly, simple interface allows for quick use of all features available in this program! It sometimes freezes up when using some functions but other than minor glitches nothing really dislikes about Eclipse as far i can see from my experience so FAR!! The ease at which we are able train our clients has been incredible since implementing into their workflows.