I have only used it for exploration projects but understand that with additional modules (such as pit design and production rates) it can be used for production schedules too. The software acts as a central interface for all of the drilling data from the borehole trace with customisable graphics or traces alongside (e.g.: geology, mag sus, assay results, struc info, etc) to the exporting of sections for field interp or planning; and resource block modeling.
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.
Lower cost and more user-friendly. My understanding is that the functionality is somewhat more limited but for our use in exploration it does the job and does it very well.
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.