Expectations were high, it was THE Lee Min Ho comeback, Kim Go Eun working again with Goblin's writer Kim Eun Sook, who created some of the best dramas in the last decade, and lastly, it was on netflix for the global audience delight. But expectations were not met. I'll go through the good stuff first: Wo Do Hwan portrayed two of the most endearable and funny characters I've seen in a long time, and with such fluidity, it was so easy to tell them apart and he had a great chemistry with... Himself (?); music, editing and production design, were fine, even with the difficulties about japanese symbols and all that. Also, the chemistry was good between the leads. NOW THE CONS: I have to reckon it was very confusing for me and I did kind of finished out of a feel of commitment, also hoping everything would be explained in the end, it was not. 1: I didn't understand how and when they fell in love, one second she was so prickly with him, and the next they were kissing, like, what? 2: sometimes it could be hard to tell the two worlds apart, because they looked basically the same 3: Conditions on portal usage and travelling between worlds were all over the place 4: Everything went down when they add timetravelling, like, still haven't figured out the rules of it and how it works with timelines and stuff 5: some subplots didn't go anywhere 6: most of the time it is VERY hard to know what's going on and characters reasoning, i guess they failed at creating suspense, leaving everybody confused instead. Beside that, there are some cheeeeesy lines, but thats a given with LMH characters so i didnt actually mind. Also, i guess a big turnoff for some is the abuse of product placement, there was a lot of it, and not very well done. Although if you ask me, the food delivery service ppl is a gem. Still, DO KOREANS ONLY EAT BBQ FRIED CHICKEN?. And, last objection: The ending is sooooooo unsatisfying.