HI, i saw these on ebay, anyone ever use one and are they any good?

Custom made copper Coffee Lake IHS. According to some questions it's only IHS (metal plate on the top), IT'S NOT CPU!!! Compatibility: - Coffee Lake based CPU - 8700k / 8600k / 8350k / 8086k etc. - more rigid than original one, may reduce bending of the cpu, when heavy cooler is used - 20% increased heat exchange area between IHS and cooler - machine flat and special microsurface finish to make liquid metal application easier- perfect if you want to use delided CPU with liquid metal or other thermal compound, which may damage serial numbers of the CPU- intented to use without removing the glue from PCB, although for some people removing the glue may help