I first install the Google Chrome and I was reluctant. After that we have everything you need to connect the key WiFi.
Immediately we find how to have a copy of the MBPro screen on the screen where the key is connected.
We must spend some time to discover the stuff we can do with this key as the free TV channels (RedBull) or paid, chains replay, Youtube, other sites that can "CASTER" also . CASTER means swinging on the key.
With my Android-phone, I found it easier to use.
Apps must be installed most of the time so it was sufficient to connect to the site with the mac.
Smartphone in hand, it's more like using a remote control for everything TV.
On a TV that did not receive the type "AirPlay", it allows to receive on screen a carbon copy of what we see on the smartphone screen. Thus, one can look with family photos taken with the smartphone during the holidays. The videos also.
For TV channels offered with my Orange subscription: it's not working. It is impossible to cast the free option SCO.
Once the chain of TV cast to on the screen, I turned off my smartphone to make sure this does not happen by my DATA package but it would pass by my box despite the selection made on the Google Support. This is good. The key is connected via wifi box.
Of course one can simply cast all media mac to display movies, photos, documents, music.
Too bad about the Apple store supply compatible Apps Chromecast is almost zero. You have to go by hackers to exploit sites in more depth the key. Especially use the keyless Google Chrome!
The most desired use for me to use an external monitor to extend my desktop on a screen with the key; without cable.
Unfortunately, with the release of the MacBook Pro Display port that doubles as a Thunderbolt port, it's cheese or dessert. With this key, it is the hope of a solution. And above use the keyless Google Chrome!