Great Addition to Pit Boss 820
The installation was a little challenging, it takes a couple of extra hands to hold the shelf steady for measuring where to drill the holes.  Once that was done, the installation was very easy.  It is a little smaller than I would prefer, but it certainly beats not having any shelf.  It is very easy to raise into the locked position, and then lower into the stowed position.  I recommend it if you need a folding shelf.
Rating: 4 stars