The quality may be fine...just different then the original product.
I was expecting this product to be like the Original Sensodyne. It has a different texture and taste. I have about 1/3rd of a tube of the original Sensodyne and I compared them carefully. I may have to adjust! Just know that it's different than the Sensodyne I've used for probably 20 years.
This is Sensodyne that works like the original. The Sensodyne products sold in the US do not have the pain relief that was available in original Sensodyne, but this does. I've been buying this for 7 years and it always works like a champ.