This was my 2nd Kohler 72" metal shower hose.  The older one in a different bathroom is much heavier, so I really enjoyed the lighter weight of the hose.  There was no need for a plumber, as it was a replacement for a plastic hose and I was able to install it myself.  The hose was of excellent quality and the polished brass color is difficult to find.  It was paired with a Kohler handheld shower.  The plastic hoses have a tendency to leak, so metal is the preferred material from my experiences.  The longer 72" length is more practical when bathing.