Had it professionally installed.  Looks awesome, works GREAT!  I wish there was a way to make the nozzles work simultaneously with the rainfall or hose but you have to select from one of the settings.  Plenty of power and the tub spout pushes enough water to fill a tub...not as quickly as a full-open tub spout but good enough.  Love the temp display...very accurate and good for adjusting shower for more than one person.