Hey guys, so with all of the posts asking questions about the Mi Box and reporting issues i just wanted to weigh in with my experience. I am coming from a Chromecast and Roku, before that a Fire TV Stick. I mostly used them for YouTube, Netflix, and Plex.
I have had the Mi Box for about a week now and I absolutely love it! It combines the remote feature from other boxes, with the ability to use Google cast. I have it hooked up to a 1080p TV in the living room, and we've been using it for the live channels feature with Plutotv as well as using the free trial for Sling TV. Netflix, YouTube and other apps work just as expected compared to the Chromecast.
The interface and loading times are quick and WiFi has not given me any issues! I had to go through and manually update most of the apps as well as uninstall the ones we don't use and disable the Mi Recommends section.
My only complaint is that the HDMI CSC doesn't turn off the TV but does turn it on. I will note that the Play/Pause controls on my TV remote do control the Mi Box.
TL;DR - I have had no technical issues with it whatsoever, and overall this thing is great and totally worth the asking price. I recommend it for cord cutters like me who are looking for a one box solution for consuming media.
Edit: Formatting, and weird voice typing typos I didn't initially catch.
Sounds very promising. However I have a feeling the problems will arise when one tries to do some more 'advanced' stuff. Such as 24p video playback with HD-audio passthrough.