Does anyone have a river rock shower floor?

[mollybrown]

How do you clean it?  I've been half-assing it for the last 6 months, using a cleaning cloth and friction.  Let's just say it doesn't look as clean as it could. 

I've googled it, and recommendations are all over the place.  I'm going to take my steam mop to it today, and hope that helps.  Do I need to buy a product specifically for stone?  I use a stone and steel cleaner (mostly alcohol) on my granite, but I never thought about using that on the floor until today.  Is there any reason I shouldn't?

Last question...do you seal it yourself, or hire that out?  How often do you seal the grout?

[clementine]

I'd be curious to hear what people think. I'm considering putting in this type of floor.