The Cool Plate and the Engineering plate have both been discontinued. The Engineering plate had slightly more texture than the matte finish of the Smooth PEI plate, and a good deal less then the Textured PEI plate. It provided no advantages over the current PEI options. Either PEI plate is a good choice for use with any filament and they do not require glue for PLA.
I use PEI, smooth or textured, with a thin coat of glue for all but PLA. No problems adhering, though a couple large ASA prints needed brims and some temperature experimentation to deal with warping.