From the way Escha Chron is paced, it feels like 2 episodes of a longer show that was never finished. By the time you finish both episodes, you'll feel like they're just beginning to hint at the plot of the series. Every question you came into the series with (what is Terminal, how and why are the girls crossing between worlds, etc...) will go unanswered, I regret to inform you. In fact you'll probably have more than you started with (for example, who is Albert?). It's frustrating because this is a very promising series that could have been sneakily excellent, like a cross between Non Non Biyori and Girls Last Tour, if it had been given the space to fully develop its ideas and show what it was doing.
As it is, each episode follows the titular Escha and Chron as they come into a mildly troubled stranger's life and brighten it with their sincere love for every new person and experience they encounter, which makes them reconsider what's making them unhappy in their own lives. It's a very sweet and comforting viewing experience and Chron in particular has a childlike wonder at the world that's very endearing. The sci fi portion of the plot seems like an afterthought, or foreshadowing for an eventual reveal of the show's mysteries that never comes. I really would have loved to see where they were going with all of that and its a real disappointment that we'll never find out since, as an anime original adaptation of a stage play, it has no source material to continue the story either. The sum total of what you learn is that it's always snowing in Terminal, and the girls set out on a journey from there by choice about a year prior to the series. Nothing else is explained.
In the end, it's just a promising 2 episode teaser of a longer story that doesn't exist, which makes it inherently incomplete and frustrating. The individual episodes are both quite good and the characters they meet are charming and interesting. Still, without an ending and really without even a middle, I can't fully recommend it as anything more than a fun diversion. It really could have been something special if it had been a full length series with the time to tell its story.
Lastly, I should mention that there's lots of musical interludes, especially in the first episode. The music is pleasant but nothing special, but it does enhance the scenes and the stories they're trying to tell. If you like music or idol shows, its a nice little bonus.
