AFR (auto frame rate) .... For me it's really the only important thing missing to formuler Z8
This is function which designed to match the media player's output frame rate to the original frame rate of (video) content. This applies to content that's mastered at different frame rates, for example 24fps film-based content or other international video content encoded at 60, 50, 30, 25, and 24fps.
For TV Box (formuler Z8) is important to have AFR in the system to make sure all the content plays in high quality.
DRM
It also lacks consideration of Digital Roights Managements (DRM)