As someone who was quite heartbroken after the ending the two had in Goblin, this was perfect for me. It was outside my usual taste in dramas as it is purely a light-hearted romantic kind of thing, but I was pleasantly surprised at how the plot flowed. The way it touched upon heavier topics in a much lighter manner was something I thoroughly enjoyed watching
There was no overly exaggerated acting or various angles for a very small scene, but rather, a well-paced relationship between the two with a lot of cute scenes that had me squealing.
I would have preferred if certain side plots were given more attention but I assume it wouldn't have fit the style of the rest of the drama.
I'd say go for it if you are in desperate need for our sunny and grim reaper to have their happy ending, and also for a good laugh since it had just the right amount of humor. Feeling quite empty after finishing it but more than happy with how it ended :)