As to shower head height...if you like to stand completely under the shower without bending over, if it comes out of the wall at 6', then bends down for maybe another 6", it would only support a person 5'6" tall...personally, I like it high enough so I can get my hair rinsed out without bending over under it. To make it more convenient for other vertically challenged people, I put the shower head (actually a hand shower bracket) on an adjustable pole. I personally think 6' is too low. My unprofessional opinion. NOte, some people are using rain head showers on the ceiling...I don't think that there is a wrong height, except maybe too low.