Look, no $45 PBT keycap set is going to compete with GMK sets or the sort. If you know what you're buying these are actually a fantastic deal. Fits better than the keycaps that actually came with my board, so thumbs up there. Overall a great deal, therefore the 5 stars.
Wanted these for the shine through, PBT feels great and the sound's nice. Didn't find any blemishes on the keys, the underside isn't the prettiest in some of these along the edges. Legends are sharp, super crisp.
My only gripe is the uneven shine, most noticeable with white light. Some keys have the white LED come through clearly, while on others it's a bit muddled, with a tinge of color from the keycap instead of mostly white. Some of the light also bleeds through the keys outside the legends, with it being the worst on the W, being very apparent on max brightness.