Thank you for replying. Here are my thoughts. I might not be the target consumer for this product. At work I use a spare whiteboard eraser to tilt-lift the computer for better ventilation, sure it makes it slippery but I rarely touch the thing while I work with my external monitors, mouse and keyboard. Which means that this product would not be solving most problems it was made for. If I where to concern myself with scratches and bumps, I would be more likely to consider a cheap silicone alternative just for that purpose.
For anyone that want to solve these problems in one fell sweep without the hassle of carrying around more stuff this could be a good product for them.