We've had a 102" Keen Cutter for a few years now and use it all the time. Our setup is with the extra cost table and is the Javelin model which has a higher accuracy rating than their lesser models.
It appears that the one you're considering is a rotary blade while mine is a utility blade running in a slot. Both do a good job on films, banners and masked films. Not sure what the rotary would do with PVC foam board and coroplast. The Keen Cutter easily cuts 1/8" and 1/4" softer substrates. If that's important to you then I would check whether or not the one you're considering will handle that kind of cutting.