I live in the Chicago area and have not missed a summer since 1979, it's our family getaway spot.
We've been to countless others and K.I. has the right stuff even spite of the parks ups and downs.
I remember we went to Disney World back in the summer of 2000 second week of June I believe we had such a crappy time we came back and went to K.I. and got our moods in check sounds crazy huh