The biggest plus is that all of the shades in the Swamp Queen palette are very easy to wear, which is a huge deal for me; in every other 9+ pan palette I own there is at least one shade that I'll only wear a few times a year and then at least one more pan of product that I'll never get around to using, but every shade in the Swamp Queen palette is something that I'll wear regularly. I can tell that a lot of thought went into this palette; the shades are wearable practical-but-pretty 'everyday' shades, that are easy to dress up for night/free time. The shades can be worn on all skin tones and they actually compliment each other - this is one of the few palettes I own where I can say that I'll use every single colour regularly.
You get a bronzer, pink blush, golden highlight, and nine eyeshadows + full-size eyeshadow brush. The Sweet Tea bronzer and Does This Thing Really Work? blush are highly pigmented, but tapping excess of the brush softens them enough for me to be able to wear them on my fair skin. Even though it is wearable on my cheeks, I do prefer using Sweet Tea as a eyeshadow as it's a bit too warm-toned for me to be fully comfortable with - but as long as it's being used, rather then just sitting there in the palette untouched, I have no complaints. Does This Thing Really Work? is a universal shimmery pink - I think it'll work on every skintone. The neutral champagne Gator Wings highlight is a glowy wet-look base, filled with shimmer and microglitter - very light-catching and super vivid.
The mix of matte, shimmer and microglitter eyeshadows are very easy to pair together for looks; you can pick and mix from anywhere in the palette, but going in a line vertically or horizontally is an easy option if you feel a bit overwhelmed when you first get it. The shades perfect for my tastes, and work well with my neutral/cool skintone - lots of sepia takes on neutral tones to brighten my face (the orange/brown shade Dogman is my favourite), and a lilac & darker purple for when I want to switch my look up a notch. I've found some of the shadows in other Tarte palettes a bit hit or miss, but everything in Swamp Queen is very good; highly pigmented, easy to blend & build up, plus crease resistant; #SFS (rose gold shimmer), Natural Peaches (matte peachy nude), Dogman (burnt sienna microglitter), Big Baby (matte cream), Sassy Bun (copper peach shimmer), Sippy Sippy (dark brown microglitter), Haunting (lavender microglitter), Uncommon (purple slate shimmer), and Mancat (matte deep plum)
My only complaint is with the Gator Wings highlighter and Sippy Sippy eyeshadow - they are both very shimmery and glittery, and the heavy shimmer/glitter particles fall out and spread over my face quite a bit. The blush, bronzer and several of the other eyeshadows also have faint specks of tiny microglitter in them, but nowhere near as much as Gator Wings and Sippy Sippy do, and I haven't had any of the fallout mess with any of those. A bit of the problem is that the heavy amount of shimmer/glitter in Gator Wings and Sippy Sippy means that the powder isn't as tightly packed into the pan, increasing the mess it makes. If you take extra care tapping excess from your brush when using Gator Wings and Sippy Sippy most of the heavier shimmer falls straight out of the powder, so I can still use the products without major problems. But why put so much glitter into the products in the first place? I can tell that if I'm in a rush to get ready and forget to take care, then things could get messy...
Also; the cream eyeshadow [Big Baby] is less-pigmented than everything else, but I think it is designed as a base for the other shades, and to neaten up transition edges, so it's not a deal-breaker for me.