I tend to wear this everyday, even for work. I used to wear my winged eyeliner everyday, but this is much quicker and softer. Also, if I'm going out in the evening, I can quickly add some darker colours in the outer corner and I'm away!
I usually use the sponge applicator that comes with the palette when using the Heaven & Earth palette, because I have found it gives a better finish, and it's relatively easy to blend colours into each other with it too.
If you would like a tutorial or anything let me know!
(Link to MUA Heaven & Earth Palette review & swatches post here, and my First Impressions post here)