Been using 8 of these lights in a tourset and other project for a year now, really really happy with them in general and so far only 1 of them has a little (dismissable) glitch every now and then.
Bought them because I didn't want to spend my savings on a light set, but sometimes entering a venue with only 4 parcans was a bit underwhelming, so this helps bring my show to another level.
Can run nice pixel effects, colors can be decent with a bit of tweaking, and output is nice until real lights are involved, but even then you can still see the pixels so that's nice.
Build is exactly what you'd expect for this price, feel like I could break them with 1 hand, but they do surprisingly survive a 2m fall.