If your dog is allergic, He'll thank you. Our furry love, Coco, tends to react to many shampoos and treatments (even food). Based on the reviews here and the price, I've ordered this one.
We've used it on him, it lathers well, the quality is great and the BEST PART - he had no reaction to it.
Since it's designed for sensitive dogs, don't expect a strong or long-lasting smell.