The story of this spinoff didn't do much for me, but I liked how Kyouko and Mami get fleshed out more. Hell, they have better chemistry together than Kyouko with Sayaka.
Also, their big battle made up for something with Kyouko and Mami's Kamen Rider Ryuki equivalents
Yes, I enjoyed it specifically because it "fixed" something from an unrelated, although oddly similar show.