Her skill does new and interesting things. The effect is... thoroughly average DPS for a 5 star AR.

The problem is that while her initial burst is quite good, the stun puts a massive damper on things. While you can turn off her skill (it's a toggle), unlike K2, the off state isn't interesting at all, being effectively dead time for her skill. However, if you need burst in the time her skill actually works, she can put out. Just be VERY aware of her self-stun and how it can impact you. Because of that, you're likely better off using almost any other t-doll that doesn't require babysitting like she does.

Also, I hope the picture makes you feel dirty, 'cause I felt dirty having to upload that here.