I really wanted to like this movie. I really really did. It has all the ingredients I like. Fantasy/magic, an isolated character interacting with the 'Real World' for the first time, a mix of comedy (slapstick and cerebral), drama, aliens, and a ghost sink.
I don't know if it was the subtle differences between Korean and Japanese animation that threw me, or the fact that they tried to stuff a full, 12 episode TV series (~288 minutes) into an 80 minute movie. All I know is that this movie didn't click for me.
Taken separately, each of the plot devices are great. The problem I had was they tried to stuff too many into the movie. Had they just kept it simple and let the movie be a simple adventure (ala Spirited Away) with subtle messages, I would have really enjoyed this flick.
For me at least, there's something off about this film. If I wasn't watching it for the 2017 MAL Anime Watching Challenge, I would have probably dropped it. I'll probably revisit later down the road now that I know to lower my expectations. For the time being, this is a "meh" flick for me.