These shadows are great, pack a solid punch of color, and seem to have pretty good staying power. I LOVE the brushes that came with the set, and am excited to experiment with the many shades of color (though I love that none of them are over the top... colorful, but still staying in the neutral family). The one drawback is that each color only has a little bit. I imagine that my favorites are going to go pretty quickly, so that's a shame. But luckily a little goes a long way!
Also, on a semi-related note, my product arrived damaged, with some of the colors broken. I emailed Birchbox about trying to return/get an undamaged product, and within hours they had responded and are sending me a brand new product to replace the damaged one... and I don't even have to return the original! Now that is AMAZING customer service... I LOVE BIRCHBOX!