It is very easy to assemble, heats up well in sunshine (almost too well in Texas), keeps our strong swirling winds from breaking off tender plants.  I would advise if free standing to buy some anchors for holding it in place.  The plastic is heavy duty and does not tear easily so the wind can cause it to move.  The only thing is I wish it had wheels on it (locking wheels I would hope) to make it easier to move around without unloading the shelves.  Also needs a way to lock down unloaded shelves.  They stay in place when loaded.