I found the fencing to be okay, but not the greatest, I managed to get it to the way I wanted in the ground.  It warps easily if you handle it to much when putting it together or in the ground.  

Ex: If you interlock pieces, then undo it, or change your mind about how you placed the fencing in the ground, it will warp on you and become not straight anymore.  Rooms for improvement would be that this fencing is made of a harder plastic, like a Resin or a PVC style type of plastic, this way it would be less flimsy and more reinforced like the New England Products.