FWIW: I've been struggling with getting my Shield in a few respects:My current go-to in the living room is an NVIDIA Shield with AppleTV 4K as needed. Roku Ultra 2018 and Firestick 4K are also there if needed. The other TVs in the house all have Firestick 4Ks still. Anything more expensive would be wasted on those smaller, less used TVs.
1. When watching with BT headphones, I get audio dropouts that I don't get with the same headphones on ATV4K or FS4K.
2. Also, while watching with BT headphones, I get noticeably dropped frames, especially when resuming from pause.
3. A lot of apps only give me 2.0 Stereo. I thought I had fixed the problem by disabling Dolby Digital Processing on most apps, but it returned after a couple of days.
At this point, we are primarily using the ATV4K with the Shield as a secondary device. Not that it is without problems. Hulu only has 2.0 Stereo, and the remote situation is annoying.