I'll write a review for the reward points, but what do you want me to say about it? I have two different ones right now. Both came packaged nicely, and they seem like they're made from a durable material. If you have a CSTM80, you should consider at least one of these.
The white is nice and bright and the texture is a nice feel. As far as build quality goes, it is plastic so a bit bendy by itself, but perfectly solid when sitting on the keeb.
Bought the laser purple and it worked amazing with the stock cstm80 keys - the backlit leds make this color pop. Build quality is solid and has a decent weight that doesn't make it feel cheap - even though it is plastic and not metal. I will be picking up a couple more colors after my experience with this. What a cheap and easy way to feel like you have a completely new keyboard.