I looked over the reviews from korean because I am quite picky in horror, zombie, monster genres.
And frankly I get rid of my expectation a bit at first, but after I watched the first two episodes, I think it's really good.
I recently watched Netflix 'Alice in borderland' which I really expected a lot.
Compared to that...., it is much better. I am pretty sure that it is quite good as Stranger Things. (But i need to watch all the episodes and figure out how they end this first season and make full expectation of viewers.