Avatar Systems is appropriate for basic routine medical visit charting. In my opinion, I would not use it for anythin beyond that. I was not impressed with Avatar's capabilities and customization. The system is great for locked down user level permissions.
Suitable for all organisations that are required to collate, store and generate borehole site logs in a timely and orderly fashion. Can also be used for the storage of .ags data if setup correctly. Handles multiple projects well but is not without hiccups when used regularly. I believe it is possible to draw section views however have not done so myself.
I find Holebase much more user-friendly and intuitive although have not used for as long as gINT. It seems to handle the data in a much more reliable way and I've yet to find pesky bugs. Whilst gINT feels like a polished interface to what is in essence a simple database, Holebase feels like a bespoke piece of software.