I didn't like at first much either, but now I love it! Definitely a grower. I really wish we could've gotten Adele's version, her vocals would've been better. Sia still is a Queen though.
For a radio edit they should remove the a capella chorus in the bridge and just go right into the last chorus with all the production.
Her voice cracks are either really loved or really hated but I personally think they give so much flavor and emotion to her songs. She's so good at making killer choruses.