Product review (5 stars): Like that it hangs on the wall
Got this to replace another indoor vent.  Like that it hangs on the wall.  My old rectangular one just sat on the floor and got kicked around.  The clamps that come with it are pretty much useless but I used my old metal clamps anyway.  Yes it's kind of flimsy and sometimes frustrating to put it together but it works great.  Great replacement for my old one.