We have the original Decadent Indulgence (DI) which is great the 4-AA batteries deliver the necessary power. We also have the Ultimate Decadent Indulgence (UDI) - which like yours has just 3-AA batteries - much less power.
My wife easily comes to orgasm with the DI - but can also orgasm with the UDI when she is 'in the mood' - the lower power is especially obvious when using the rotation & clit vibe together.
Enjoy - I'm sure you can find a way to make this high-quality work.