Comparison
I tested four pads against the MP510 to check on surface differences, which are obviously huge. None of the other pads even have a similar weaving to the MP510, which isn't surprising given how unique its material and surface type is. The closest other pad in terms of feel is probably the Razer Goliathus Control, but even it differs a lot if you take a close look.
HyperX Fury S Speed
Logitech G240
Razer Goliathus Control
SteelSeries QcK Edge
Build Quality
As far as build quality goes, I have nothing against the MP510. Its edges may have a few slightly uneven stitches, but apart from that everything is stellar; no bumpiness, uneven areas, or anything else of the sort.