Quality Plastic, Uneven Legends
They're great to type on and feel just as great as PBT. I don't mind the inconsistent thickness of the font but that is something you should be aware of.
Pretty much GMK
Almost exactly GMK WoB, the only difference is some noticeable inconsistency on the legends, some legends are skinny in some parts. If you don't freak out about extremely minute flaws, these are basically just GMK WoB but almost half the price. Definitely worth the buy. Also should be noted that instead of putting indicator bumps on F and J, the profile of those keys is instead lower and more caved in which I personally don't like.
Decent BoW keycaps, with some flaws
I really like the feel of these keycaps compared to the GMK sets. They have a textured feeling that's really nice. The font thickness inconsistencies aren't really an issue, but the backspace I got part of my set had one of the crosses off, so it doesn't come up after being pressed down. The picture I attached has it side by side with the backspace keycap from my GMK Pulse set. The Right cross is off and doesn't seem to work correctly (I've tried it out with my two other keyboards, and they are all doing the same thing.) Other than that, I like the keycaps. They are nice and I didn't want to spend the $120+ for a BoW keycap set. Just wished the backspace worked.