We were lucky that we visited a few days before all museums were closed in Seoul. This museum is good to visit on a sunny day as there is quite a bit of outdoor walking required to get from building to building. Overall an interesting and historic place that gives good insights especially about the Japanese occupation. The museum is spread out in several buildings, from main building, guard building and the building with jail cells. In a lot of the cells people who led and fought in the resistance are introduced which gives everything a personal touch.
Nearby the museum is a nice pork which is worth a stroll when the weather allows. To get to the museum is fairly easy, a subway station is right there plus many bus stops.