Crash Landing on You is a nice story but with it's flaws. It's not perfect and not bad.
Even if genre stated that it's a comedy I didn't kinda expect it due to the story type (north-south) but it was a comedy :) If I watched this show before I watched too many dramas I would have loved it. But now I can't help but find faults(?) get bored/tired(?).

Shorter review is at the end.

Story:
Love between a person from South and North Koreas. Well there are dramas like this out there, uniqueness came from how they met - "crashlanded" into another country. That was impressive. I loved the start. It was very interesting I was looking forward to it and was uneasy like why do they show side characters so much, while I wanted to look at the main couple. I was also uneasy because of the whole comedy. the situation was extremely dangerous and crazy but it was shown in the drama as light and comedic. I wasn't expecting that so I was taken by surprise but I grew to appreciate that part and that comedic part was what kept me here. In the second half of the drama which i thought i will enjoy more, my attention turned toward all the side characters and I lost interest in the main couple who kept crying, hurting, injuring, crying etc. I do understand those feelings and I cried too while looking at them but only because i'm oversensitive and tend to imagine myself in their shoes. Should I say the story got unrealistic? Well it wasn't realistic from the start but I think the word realistic has two meanings if not more. Realistic like in real world (dramas like Misaend, Black Dog) and realistic like logical(?). I am already used to dramaland unrealistic parts when they hear someone's conversation when they are like super far away, and don't notice someone coming in or hear someone talk when they are beside them only for convenience. Yeah that might be needed for the story. But still at least NIS can't be THAT nice and kind. Well I did go with the unrealistic-ness okay from the moment I accepted this drama as purely a romantic comedy and not a thriller.
the ending was ok. I can see that because of some political issues they couldn't do a different ending. So this ending was like very expected ending from the very start. I like happy endings and well yeah they can't do a happy ending for everyone because they need to keep the "impact" "emotions"...
I loved the references to Memories of Alhambra and Stairway to Heaven.


Characters/Acting:
Oh characters here were amazing! Especially side characters. At first I didn't want to waste my time watching them and not the main couple, but in the end by showing them so much, I grew fond of them more than the main leads. They were great <3 <3 <3 Lee Jeong Hyuks squad was extremely amazing, north ahjummas were really funny and nice, Se Ri's employees were also very nice and cute. Of course acting was top-notched. I like Hyun Bin from Robin from Hyde Jekyll and I.

Other thoughts:
I really don't understand why were they sued because of too nice North Koreans shown in a drama. I have to contradict myself saying that this is just a drama it doesn't have to be realistic xD on the other hand. That part actually might be realistic because it's not like every single person in a country is good or bad. There are all kinds of people everywhere.

Conclusion:
This is a nice drama to watch so i recommend this to anyone who loves romcoms. Those that have seen many dramas and are kinda tired of romcoms might not find this very good though. My rating is high because of the side characters and the comedy. It was funny, otherwise I almost dropped it. But I am happy I finished it :)

Shorter Review:
What I Liked:
-Lee Jeong Hyuk's squad, Pyo Chi Soo (a north korean girl told his accent is the best out of all xD)
- north ahjummas
-north parents
-north accent
-showing us north's lives.
-side couple
-se-ri's elder brother's wife (the stupid one) funny
- Ri Jyoung Hyuk himself.
-Se-Ri's character
-His messages at the end
-Alhambra and Stairway references <3
-Too Kind NIS

What I didn't like:
-second part of the drama
-crying
-injuring
-dying living dying living
-too kind NIS ( i wrote this in like because i liked them but they were like extremely kind and understanding O_O, either all the other dramas out there are depicting the police, prosection, NIS as too corrupt, or this drama showed them too nice, no idea which one is true for now this one appeared to me unrealistic lol xD)

- My rewatch value is almost always 0 because i don't rewatch dramas.