Review (1/5): I felt nothing.
I was really excited about this product. I think the concept of combining air and small vibrations is revolutionary.
Unfortunately, I feel dissapointed now.
I used this scalp massager for the first time just exactly as instructed by the manual (immediately after applying and lathering the shampoo, making small circular movements, and without pressing too hard). I felt nothing, I even checked that the device was in fact blowing the air by placing it over my face, it seemed to be working just fine. My scalp did not seem to receive any vibrations at all, not a difference in the lathering of the shampoo. After a few moments on this trial, I was already tired of using my hand, because the handle is kind of big, and the device is a little heavy. I put it away and just finished my routine.
Note: when a massage is really effective in the local blood circulation, you are supposed to feel a subtle tickle under your skin. Again, I felt no change at all.
Then I though: "maybe this is better for people with very short hair", so I offered the device to my husband. I really wanted him to try and be honest before I write this review. Same negative results.
The other thing I didn't like about this appliance is the need of batteries, (it requires 3 AA batteries), which is not cost-effective (even if it worked as described and I used it every day). It would be better if it was a rechargeable unit, with either a USB plug or a charging station (like the electric toothbrushes).
In summary, the product did not benefit my scalp as described, I cannot recommend it.