This was a very nice family drama. I enjoyed all the stories, even if it started to drag a little long toward the end. I heard it got an extension, so that may be the reason why some of the stories seemed to drag on a bit too long. Overall, I enjoyed this one a lot, though. Even though it wasn't perfect, I didn't feel the need to ff or skip any scenes or episodes. My main complaints were some things that were left unexplained or dropped from the beginning of the show, and also that the chemistry between the actors that were supposed to be in relationships could have been better. (I feel that was more of a direction thing and not the fault of the actors.)
For acting, Yoon Park (as Kang Jae) and Son Dam Bi (as Hyo Jin) in particular could have been better. Yoon Park was a bit stiff. Kim Sang Kyung (as Tae Joo) was good, but sometimes a little overacted - mostly when he was supposed to be funny. He nailed the more serious parts. Kang Shim was probably my favorite character, and Kim Hyun Joo did a good job acting her role. I also enjoyed Park Hyung Shik as Dal Bong as another favorite - it was really cute when you could see how similar he was to his father. I enjoyed all the characters, though - even the ones that could be annoying sometimes.
There was a nice balance between the comedy and the drama, and I laughed a lot and shed a few tears. There were definitely some emotional scenes. This drama really makes you want to show your family appreciation and love while they are still here with you.
I rated low on the re-watch just because I doubt I will ever re-watch a 53 episode drama.
The music was nice, especially the Father's Youth song - very touching.