It was very difficult to get out of the boxes (3), Lol!  Once I got all the pieces sorted (and there are lots) it to me about 1.5 hours to put it all together.  The instructions were fairly simple only needed a screwdriver  the Allen wrench that comes with.  I just went step by step, plug in the fireplace and there you have it.  Seems pretty sturdy dont have a TV for it yet but its already warmed up my living room!