I like this tile as well. Very sleek and mod looking. I would consider running it vertically instead of the picture horizontal pattern. It might give the illusion of more height in the shower surround. The color is great. If you are worried about it being "too much," you could always see if they have the same tile in a different shade and mix the two or doing one wall in a contrasting (lighter) color. I personally like it as long as you have good lighting.

The photo's a bit dark, so I can't quite tell your colors. Looks like you have all solid colors in the room: sort of a brick-colored upholstry, dark wood framing and cream walls, with plants outside the window. I think you need so 'pattern' to relieve the solids...at a minimum a tone-on-tone so that there is some texture or pattern involved. get close approximations of your existing colors (swatches, paint chips) and head off to the fabric store looking for something that doesn't feel overpowering, buy a yard and bring it home for trial and error -- you may end up with great pillow fabirc, or a new drape.

We like to recommend that the grout colour matches the tile as far as possible. This helps to create a seamless effect.

Yes if the tiles are not cracked and are in usable condition. You can also choose to leave minimum gap between two tiles.