Seems very stable and looks beautiful.  I am fortunate to have a stud every 12 inches in the closet I installed this in.  I just installed it yesterday but am going to pull it out and apply a few coats of poly spray to this, and several to the garment bars, in hopes that it stays looking beautiful.  A major improvement to a closet that was built in the 1960s!  Unless you have a fairly wide closet, there will likely be some cutting involved.  A chop saw comes in handy here.  I ordered a 2nd one of these for a smaller 48" closet, and yes, if you look at the installation instructions, there is no reason you cannot install one there.  In this case, half of the closet ends up being the tower.  I wanted both closets in the master bedroom to match.