A friend of mine is lucky enough to have this shower at his disposal all the time. 4 shower heads and a seat big enough for 2 (ahem). This is an escape unto itself. Sigh.
The 14 foot ceilings give onto a skylight that can be raised (electronically) so that the steam can escape. You can use any combination of shower heads. The water is heated by an on-demand water heater (which doesn't help trying to cut the shower 10% shorter to help with the water shortage in California...)