It is one of my favorite drama ever.
The whole stroy about Eun Chan and Han kyul is great. When I first watched it I couldn`t find proper subs and ended up watching it with french subs( my french is bad).
Still this drama left a big impression on me. Yoon Eun Hye is the reason I watched this drama and now I`m a big fan of her.
On a sidenote: I skipped all the parts with the cousin and his (ex-)girlfriend.
Edit: Me also was very sad about Lee Uns death cause I watched Coffee Prince just a few weeks after his death.