Excellent for half the price of the real thing. A bit annoying to remove fine traces of PETG, but I guess that shows how good it sticks !
Only time will tell about longevity but going from my first few prints of PETG the sheet works rather well. If I'm really picky it seems the coating is sprayed on by hanging of the two holes wires, you can see two faint lines of coating missing here on the thumb tabs (only one side). However this does not affect the funtionality of the product in any way so I cannot complain at this price.