I've also used ceramic tiles(with a slight texture),they are indeed real easy to clean up. My concern would be for the coolness.
If you're using a lamp or heat emitter over the tile it will heat up nicely though.
Right now I'm using a sealed wooden bottom and is just as easy to clean and not so cool where the lamp doesn't shine.
It does absorb a nice amount of heat too.
I'm considering the turf in the future for the sake of comfort but I have a monitor and being larger is not as likely to catch her toes in the fabric.