Not sure about all the hate but this is not an awful show as others may have perceived it. I agree that it's not a superb show. There are even lots of comedy scenes that didn't hit the mark. But I like that it showcased the importance of family, and that family is not about blood but about quality time you shared.

I also like that the female lead is not feeble-minded on deciding who she wants to spend her life. Even though she has 2 men vying for her attention, she didn't take it for granted and didn't play with their emotions. She didn't go back and forth on both men. She was decisive and I think it's a good trait.

I also like that they added a mix of suspense/detective scenes, as well as a bit of a bromance.