I started watching this on Sunday and I was hesitant to watch it due to the drama around but hey yoon is my favourite actress so why not, i really enjoyed it and that's the suppressing considering i don't really like unexpected twists in dramas it was very emotional ( i didn't cry though ) i enjoyed this drama however there are a few things that could've been different.
1. The chemistry I didn't think their chemistry was bad or awkward it just didn't feel natural, especially in the last few episodes

2. i felt like they could've gone in more depth like what does the grandma know? Why does she change time or world or whatever? which world or time is the real one? It feels like it needed more than 16 episodes and there were A LOT of things that were left unexplained

3. i understand why the fl was frustrated but why did she have to lie and pretend like she didn't like him or shout at him because he got her a gift... like girl be happy after changing time and dimensions about 100000 times you would think would realise there's no reason for her to lie or pretend to be okay.. or act like she hates him right? but no

but yeh watch it i haven't watched a drama without dropping it for months so it must've been good