I ended up liking the idea of GMK Bleached more than the final product. It's too white. Not really sure what I was expecting.
PBT Notion is a stocked keycap set with a lovely colour combination. Biip really knows colours and icon design. The plastic quality isn't as high as a GMK or SA set, and it's printed not doubleshot, but these are things I can live with. It's a lovely-looking set that feels great to type on.