Miley has talent, yes. She can sing and she can act (bare with me even if you disagree). But she struggles with making a musically superior album. Bangerz has its steps forward, and its steps back. At the end of the journey, you're left with several different tastes in your mouth. Some of them may be "I really want to throw a party," and others may be "I really want to throw up."Ballads like Wrecking Ball and Adore You are steps in the right direction, but multi-genre atrocities like FU counteract the progress made. Miley, as much as you may love the Rihanna style you've adopted, you do so much better when you wear your heart on your sleeve, rather than wearing nothing at all.
In short, the ballads are fairly excellent, but the party songs aren't deserving of much attention.