I actually enjoyed watching this drama. While it was interesting to watch there were parts that did drag a bit.

The acting was really good, especially Yeo Jin Goo. His ability to express emotion (just by making a face or through body language) was phenomenal and there were times when I really thought Young Goo was a robot and other times where I forgot he was one. He was also very adorable and funny.

I liked most of the cast and enjoyed the funny moments, but I did not like the CEO (he was abusive and very warped mentally), Diana (she added nothing to the show), Ma Wang Joo, and Da Da's unni. The last two were insufferable. They were constantly asking Da Da questions that were none of their concern, they were rude to Young Goo, they would pop up at her house unannounced and just walk in, stick their nose where it didn't belong, try to tell her what to do and how to live her life, etc. For these four characters, I skipped through their scenes because they were irrelevant.

Overall, I do recommend this drama and it is likely that I may watch it again.