Very well packed, pretty easy to install, very sturdy.  The plugs that hold the brackets are interesting... They are a hard plastic that kind of shear off when you hit them into the tile with a mallet.  I suspect this is a waterproofing feature should the silicone fail.  Need's a single 1/4" hole drilled per bracket. (Of which there are three).  Both sides of glass are treated with a shield coating that is supposed to help reduce soap scum and make cleaning easier(too new to know if it works!) .  Glass is very heavy, so needs two people to move/install.