Surreal Violet is more mauve than violet to my eyes; there's definitely a touch of brown to it. What sold me is the copper/amber shimmer, which, while subtle, is definitely there and adds a richness and interest. I really like this one.
Surreal Violet made me think of Essie's Demure Vixen, another taupe-y mauve with shimmer.
From some angles, Demure Vixen can look almost as dark as Surreal Violet, but in most lights, the Essie definitely shows up lighter and pinker than the Estee Lauder. Here they are in normal room light:
And here they are in sunshine:
I like Surreal Violet better. I do wish its shimmer were a tiny bit more visible indoors because that copper is so pretty against the base color.