After playing the first episode I wrote that I really liked everything but the time travel, not because I don't like the sci-fi elements, but it felt like you spent so much time to get to know the characters, just to throw them away and meet new ones.
I came back for the second one, because the dev said that wasn't the case, and after finishing it, I have to say the way he handled that aspect of the game was absolutely perfect! We spent a lot of time there, but we learned some interesting things (we got more questions than answers, but it wouldn't make sense if we were to figure everything out by episode 2!), the dev didn't drag it out more than was needed and we even got some progress with pretty much all the stories from episode one.
I'm already looking forward for episode 3! It's too early to make that kind of statements, but so far this is one of the best games I've played here.