The best thing about GrpTalk over other similar products in this space are its ease-of use features like screen sharing (which I can't live without).
It's also very affordable for small businesses or individuals who don’t have much money but need some formality/professionalism when calling meetings with clients / colleagues etc.. This software has been extremely useful so far as it helps me keep track all my calls & messages while working remotely! Not really anything else - just minor issues such us having trouble using certain functions sometimes due too low internet speeds which makes things slow down here/there occasionally although not often enough where i would say they should look into improving their service overall since we do rely heavily upon them being able t o connect well via video conference during our work hours daily!!