I've been using this service since last week and managed to spend quite a lot of time testing it out at the weekend.  I'm really impressed - my set-up is on an Apple TV 4 (connected via vpn) and the picture quality is excellent (HD where source material allows).  All channels work without a problem & can be accessed via a listings guide.  The Directv Now sub also gives access to some external apps including NBCSN, Watch ESPN and HBO Go on Apple TV - all of which work great.

Dealing with wallet4bitcoin was also great - he got me set up quickly and without any problems.

So I have no hesitation in recommending this route if Directv Now is what you are after - I plan to extend my stay with this service when it is due.