The high lubricity coating slows down wear caused by some of the more exotic filaments and seem to cleanup easier when a print goes bad.

I'm sure the Maghold build plate system works great but I can buy 2 Heat-Resistant Borosilicate Glass, 1/4" Thick, 9" X 6" for less then $45 shipped from
MC-Master-Carr. The ends are polished so there are no sharp edges.
I have 2 printers with four interchangeable glass build plates.
Both systems are proven and work.