I used it to replace my old 9x3 speed shimano to 12x1. The color is really nice, will update you after using it if the color will fade fast and the teeth will deform. Overall, it's really good for the price, really easy to install!
Yes this is less expensive than the SRAM PG-1230 12 speed 11-50T cassette and yes it looks cooler with silver and black cogs. HOWEVER, the 2nd and 3rd spiders are too close together causing it to be difficult to shift between 7th and 8th gear. It will overshift going towards 8th (smaller cog) from 7th and hop (go past and drop back down) when going from 8th to 7th. I found my SRAM GX 12 speed chain was dragging on the 7th (larger) cog when running on the 8th (smaller) cog. The solution was to add a shim (.7mm) between the two spiders. This was also observed on a Youtube video.