Mirena VS Skyla IUDs

Kay • Heterosexual, cisgendered, sex-positive feminist, trying to deconstruct various social constructs. Very much in love.
I'm getting an IUD put in this Tuesday, and I'm still in between Mirena and Skyla. I was leaning towards Mirena, because it lasts longer, but after seeing so many posters on here saying that Mirena made them bleed constantly for several weeks, I'm nervous. Anyone have experience with Skyla? Or any positive experiences with Mirena?