Great flattening plate. Channels the * away with its surface design. Pet peeve is with some woodworkers who complain their flattening stone/plate is junk because it’s all clogged up.

It also works superbly at flattening my japanese water-stones. Works great for setting bevels, flattening waterstones/jnats, and raising slurries. Works as a lapping stone for my other water stones and does the job very efficiently.

The feel is ok when sharpening knives. It's more of a splash and go type of stone easily sharpen any dull knives.

The atoma 400 diamond plate is a good flattening plate for 500+ grit whetstones and can also serve as a coarse sharpening plate. The 400 is less aggressive and will wear away less of the stone.

The price is too good to be true because it's not true. Sent it back for a refund.