Personally I'm pretty happy with the new app. 1080p and 50fps is a huge improvement and worth the upgrade alone. Hopefully some of the features requested will be in upcoming updates. I have Now TV both on my older hd only tv in the bedroom where Apple TV is and on my newer LG TV in lounge and that does not have 50fps so I feel some people are getting too worked up about this.
5.1 is not part of the new app as others have said this will hopefully be rolled out in future updates who knows. Yesterday I was amazed this new app had arrived but my thoughts are not great. I deleted the old green app and installed the new one. I had gone into test flight to press stop testing to. I have the boost option but that’s just for 50fps picture quality as I can’t get 5.1.
This is a copy of what’s on nowtv website regarding boast
You’ll need any of these devices to enjoy all the features of NOW TV Boost:
Help tipIf you're using Chromecast with iOS, you'll need to have the latest version of the NOW TV app (10.12.0) to enjoy Boost.