For the longest time I have been trying to decide which dual to purchase. I like the materials and quality of all three (rechargeable silicone), but here are my issues with them: I have read Ina's clitoral arm is not very flexible and does not rotate; Vr11 is very expensive, does not have a variety of functions, and it doesn't have a great curve for g spot; Zook does not rotate and I have read that the control panel isn't great quality (is shifty). Does anyone know of something like the Ina but has rotation and is quiet? I may be being too picky.