It is an easy install, but will leave a good size hole to repair, we used plenty of the flat under floor cable in office buildings, where core holes were not possible due to access problems, and at tht time it was only listed for removable carpet squares, every run had to be topped with a heavy gage sheet metal to protect it from damage, the last job I did was for one of the companies in the trade center after the first attack, so it has been around for a while, John, also installed some on the thornall street high rise, you may run into it on some of your inspections.
