Last week we were able to secure a hotel room for our stay in Korea. Hotel wouldn't really be entirely accurate. It is actually a serviced residence. Business people often stay there for extended periods of time. It is like a fully furnished apartment. You can check it out here if you'd like: Frasers
We stayed in the same place when we went 4 years ago because it has plenty of room for the kiddos to RUN. The 7-11 across the street was a major bonus too. We could buy drinks and snacks there and then just stash them in the fridge for when everybody wakes at 4am. I'm so excited because there is also a washer/dryer in the room so we can pack LESS clothes which means we can take MORE items to donate to the Korean adoption agency. 
I do really wish I was adventurous enough to stay in a Hanok Traditional House. More info here.  At this point, I'm not feeling overly adventurous though while taking two 5 year olds and a 15 year old. I'm going to have to go with a place I'm familiar with and that I know has a comfortable Western style BED!!