Goldie Polished Slate Tiles

My husband and I are building a new home, and recently saw some Goldie Polished Slate floor tiles installed in a showroom.  This flooring has the shimmering look and all the colors we have been searching for, as well as the natural stone appearance, without the clefting and fissures of normal slate tile. 

The Goldie Polished Slate tiles we saw are very smooth and even on top, and looked almost like granite tiles.  The storeowner said they had a natural sealer on the tiles, not a color enhancing sealer.

We would like to use this slate tile in our powder room, in a full bathroom (which is between two offices and will not be used as a typical bathroom), and on the walls in our entry hall as a wainscott.

In searching through your website I did not find any postings regarding this type of smooth polished slate, but I did read many of the postings about regular slate.

a) Do you have any information on this type of polished slate tile?  Is a polished slate tile more durable than typical slate?  Any details you have would be appreciated.

b) For our use, would you steer us away from using this material?  If so, why?

c) Any special recommendations for maintenance and care of polished slate?  It is just my husband and I that will be living in the home.  We have no children, no pets, and do not wear shoes in the house.

d) From reading many of the posts on slate, I see slate is not recommended much, especially in bathrooms.  I am curious as to why, and would the same issues be applicable to polished slate?

Thank you so much for your help!