With amazing acting from all the cast, great chemistry between the leads and good music, there is very little I can fault with this drama. The idea of him being an alien with superpowers you have to take with a pinch of salt as it sounds (and is) a little ridiculous, however the rest of the story more than makes up for it with its fast-paced plot and cute romance. Unlike plenty of other dramas which have slower parts to the story (and thus becoming a tad dull) this drama held my attention throughout its 21 episodes. Apart from that, the only other fault for me was that I found young Chun Song Yi (Kim Hyun Soo)'s acting a little monotonous. However, her part is small and it in no way affected the story for me. Both leads are cute and I loved the humour. I have, and will probably again, rewatch You Who Came From the Stars, and it will continue to be amongst my favourite dramas.