Gave it 5 stars as it works without any problem… with only one screen. Also works perfectly on AirPlay. Only trouble being it can not works when you have 2 displays connected on your iMac (this being linked to the HDCP protection). Sadly when you have 2 screens connected on your iMac the HDCP protection does not grant you the access to the content you are playing for. But I recognize this is not due to the developper but more due to Apple policy. I hadly beleive this protects honest customers as this is giving problem to them. Anyway I have to state this app works fine and thank the developper for developping it. Thanks.