It's Shut Up and Dance, my fav
the only
I disagree. For starters there's also
Episodes from the first five seasons with happy endings (the way they're presented, at least), spoilers duh
USS Callister
Hang the DJ
Be Right Back (though the stakes aren't that high either)
Arguably one from Bandersnatch
Also, I don't like San Junipero as much as others do because the final conflict goes way too fast and the way it was resolved felt abrupt. Still nice though