Use the Mac and Windows versions daily, work and personal. Have actually found that the Mac screen sharing through Royal is more stable than Apple's built in screen sharing. Odd, since you would think Royal utilizes the built in VNC functions in macOS, or may be not and it rolls its own VNC client code. Anyway, Highly recommend. Only thing, the UI in the new Windows 4.0 version is so busy and takes up too much screen real estate, wish they had steered more towards the Mac UI. Developer responded to several bugs I have found over the years very quickly, within days. Mac to Windows under Royal is more stable than using Microsoft's MAc version of Remote Desktop Connection. Screen scaling is much more responsive in Royal