Got Karndean in my kitchen and two bathrooms.
Regularly clean it by mopping over, as recommended, so getting it wet is totally not an issue.
The karndean website is excellent in helping you pick a colour scheme and you can order samples online, which show up very quickly. All of mine has had the thin strips inbetween the tiles (on the recommendation of the installer. kitchens been down about 7 or 8 years and still looks great, and definately not busy, but then we had black tiles with black strips, guess if we'd chosen pink or flourescent green it might have looked a bastard. There is a technical reason for using them, but frankly I have no idea what it is, because thats why I employed a guy to both advise me and to install it, because he knows what hes at and I don't.