That sandpaper is my absolute favorite for hand sanding. I cut a piece, fold it over and with a snap blade razor knife, trim the edges square. The thickness of the two sheets is just right to form a semi-rigid sanding surface. It's really great for getting into tight spaces as it will hold up on its own without any backing yet bend enough to get around a rounded edge.
It sure does stick. I think you'll have to use a solvent to get it completely off a tool. I prefer hook and loop so don't run into the glue issue.
ShopBot Details:
2013 PRS 96x60x12 (Centroid upgrade)
4hp Spindle
12" indexer
Aspire
Rhino
Fusion 360
Ferrari 360
Prusa MK3S+
Prusa XL multi-tool