I got the e.l.f. eyeshadow quad from a friend who knew I was rather enthusiastic about eye shadows.
The colours in the quad were quite neutral and while I could use the quad to create an eye look, I prefer to use the whole quad as base colours and crease blending shades.
The shadows are soft powdery and soft. They are not that pigmented and aren't that great to build up. As such a subtle shadow, they also fade away fairly quickly.
As I was needing some more neutral shadows I find the eyeshadows very useful, but I would buy a more pigmented quad to replace it.
For people who like subtle make up or often feel their make up looks heavy handed, this is a great quad to experiment with.
I do find these ELF eyeshadow quads to be a little powdery however some of the quads are quite pigmented and some are not so. I own three of them are the brighter bolder colors tend to have more pigmentation than the browner/natural color ones. In my opinion for the price they are still worth it, they do the job and if your wanting a full range of different colors but on a budget then these are your quads.
Tips: I havn't tried applying them wet yet...but this could produce a more pigmented, less powdery application.