This is a beautiful tub. It has clean, sleek lines. It was helpful to read that the tub can slide when bumped. I brought this information to my contractor and they drilled depressions in the stone flooring and put the tub feet in those and then caulked everything ( feet and base of the tub)  - Seems to be working well. Took my first bath in it yesterday. Very comfortable sloping of the back and long enough for my husband's 6'1" legs. Thanks