The only drawback: on my little monster broad chest, the strap on the body can be adjusted as necessary while the strap on the chest is a little too short, which prevents proper positioning of the harness. Loops are a little too close to the shoulder. Still, I did not notice any sign of irritation even after long walks. The larger is, for once, too big.
For dogs a little "abnormal", it would be well to control the harness with not just the tower body but also the width of the chest.