Its true whenever Ung says he resembles her Mom... cause I think he really does, his traits are more on his Mother's side. While Hoon is like his dad, he's naturally athletic, Ung have mentioned before that Hoon has a body for sport (aound that line). Though from time to time, Ung does have Heobeoji's trait while Hoon also has his Mom's.
The boys love there mother so much. She pretty much looked after them on her own, while there dad was busy with his basketball career( which is understandable) she has raised them and supported them through out all there ups and downs from childhood till now. I take my hat of to her for doing such a great job, cause look at how far her boys have come. I also respect that Director Huh Jae has been a good provider for his family , even though his basketball kept him away from his family he also plays a big part of how far his boys have come in life too.