It broke
Price is too high for such a simple small plastic/ silicone item that's made in China, however, suction was good on my tub, the silicone texture on the feet felt soft and nice and it worked as intended.  The problem is the side of the slipper where it's glued to the sole broke/ de-attached in just a couple of weeks after I purchased it.  I reached out to Amazon to have the item exchanged but they said I have to return and re-purchase if I wish to.  I will be giving this product a second and last chance and will be re-ordering. Maybe it was an individually faulty item or maybe I just have to be extra delicate when handling it...
Rating: 3 stars