Making choices was pretty seamless, and it wasn't as disruptive as I thought it would be. While you can kinda tell when the movie has switched to the scene based on your choice, it's very clean.

I did find that some of my choices led the film to work itself back to a previous fork in the road, which forced me to rewatch a scene again. Not a deal breaker, just annoying. I know this is just the beginning, but I like where this is going. Like stated by the OP, this was a great pairing between Netflix and Black Mirror.

(also really dig the metal head shout out. One of my favorite episodes).