Well, I only play on ACR presently and I would say the biggest thing they can work on are the UI glitches. Other than that, I'm pretty happy with it. As a software developer, I can say there's always something to do to make your app better, hence the occasional update to the software -- bug fixes, UI changes, settings/config changes, etc.
Anyway, just wanted to share that real quick. Good question, by the way! Good luck at the tables!