Interesting concept that can work well if executed properly as demonstrated by many animations and movies of old, but that wasn't the case here for ep1. Instead this felt clunky, awkward, and the silence came across as very un-natural.

Ep2 was a more entertaining episode, but the no speech gimmick felt even more forced this time around with characters mumbling words or talking with no sound coming out. Also, they really should have gone all the way and had an instrumental theme song.