"The saleswoman said it’s ok for a master bathroom as no kids are using it daily."

What is the coefficient or friction for the tile? It should be on the label from the manufacturer. Trust but verify. FYI she is telling you already it will be slippery so there is that................................

A disaster even in a master bath.

The issue is the size of the tiles as well as the surface. As millworkman indicated, you would need to check the COF to determine traction.

However, just glancing at the tiles makes me shudder. I rented a place which had large slick tiles and I felt that it was a dance with death whenever I took a shower or my feet were damp or there was any water on the floor. It was as slick as ice and dangerous.

I have basketweave tiles now on floor and shower floor and I feel so secure as I can't skid even if I try.

Kids have a shorter distance to fall and they heal faster. The real question is how is it for adults. I would not be comfortable with a slippery floor at all. I’d end up putting extra bath mats and rugs all over which defeats the purpose of having pretty tile. It’s probably better for you to find a tile you like that is not slippery, and then you can be safe, use fewer mats and enjoy looking at your pretty tile.

NO. A big NO. I learned first hand how slippery a tile like that is in a friend's entryway. A disaster waiting to happen.

Funny, when we were in the planing stages of our master bathroom and making the rounds of the show room, one of the owners showed us what she was going to do. A white tile, shiny, similar to what you are showing. She bragged that she was all about the way things looked!

Wow ok! I have my answer - no shiny tile. Thank you for all the responses. Would you do this on the walls? And a matching/similar Tile on the floor?

You need to work with an overall design - best would be to work with a good designer who would give you the best function and aesthetics.

We have similar tiles and they are NOT slippery at all. But don't be shy to ask the sales person for water at the store and see for yourself if they get slippery when wet. That's what I did!

Working with a designer is the best idea. Think about what you like and pull some HOUZZ and other pics together. Then you can show a designer and he/she will have a general idea. For example, I don’t like it when light bounces up from shiny tile as in the pic posted above, so slippery or not I wouldn’t choose shiny tile. Everyone likes different things.

Get it honed..ask the tile person if you can extra do do this. Or else use much smaller tiles for more grout thus less slippage...

The tile I did for my bathroom which is very similar had a matte and shiny finish. We chose the matte for the floors. It was porcelain and not actual marble, as I didn’t want to deal with the headaches of natural stone on the floor.

Most of the marble look porcelains come with matte options for the floor and polished for the walls. You also want to make sure that they offer a matching mosaic for the shower floor.

Shop around as not all tile stores carry the same stuff. I probably visited 8 tile stores before I found the "perfect" marble look porcelain.

Love the look of the polished tile. I wouldn't use it on the floor of a bathroom, but I would use it on the floor of a powder room.