That first week in January you'll have the WDW Marathon to deal with.............but that isn't that bad. We were there during that period this past Jan. Crowds a bit larger than other times but runners run............they don't tour....at least until Sunday

. Getting a resort, especially if you want near Epcot can be a bit more problematic but..........its doable. Weather is a wildcard. We had cool.......to 75 degrees....

Got to swim in the resort pool.
Doug