Well. I have one night in on the Q core slx, regular wide. Wish I could provide a fairer review but I spent most of the night sliding down the pad. It was my fault for setting up my tent on a, greater than perceived, slope. However, if you're kids are ever interested in doing some slip and slide games I can recommend some great materials. Other than that obvious draw back, the pad was super supportive. I'm 6'1 and 210lbs and I feel the regular wide was sufficient, the long length might pay off for anyone looking for little extra room on the end.
Now, to deal with this roller coaster of a ride that my bag and pad seem to have together... Anyone recommend a good source to get some of those rubber ducky stick-ons you put on the bottom of the tub to keep from busting your ass?