Got it in the air today, and I'm a little underwhelmed. Even on 5s she feels underpowered.
So far I've only tried it on the Azure 5140, gonna give my Gemfan Hulky 5055 next, see if I like that better. I think my Tmotor 2408s have ruined me for other motors; they're just so awesome on 6"
EDIT
Well, new props and a little tune made all the difference. The Hulky 5055 are awesome for these motors.