Table, grate hanger, charcoal bin (beer cooler, just add ice
), lid sling, stable platform for moving, thermo in lid, propane assist lighting..... I also use a chimney with paper for lighting & just touch it & its going.
ALSO (and this I found to be a big selling point for me) if you like to cook on your Performer in the low & slow range (which I do), the propane assist is perfect for lighting 6-10 briquettes without a chimney, which can be difficult, without the use of a weed burner, etc.
I have 2 Performers & IMO they are everything Weber didn't have on all the other kettles.... Can't wait for the 26.75" Performer to come out (I HOPE!)