The vibrations are nice and quiet but there isn't much distinction between the lowest strength and the highest strength. Practically speaking, this toy got me very aroused but was extremely difficult to orgasm.
The strongest point of vibration was at the middle of the lipstick. A better design would put the strongest vibrations at the tip of the lipstick.
Still, for the price it's an amazing, adorable, discreet product. I would pay a little more for a vibe that looked exactly like this one but had a stronger vibration focused at the tip (and still quiet).