I got this a year ago as a present. It took some practice to get used to. But since I got it I haven't use my gas grill once. You have to use the right charcoal. (lump) 
Somehow this grill is very economic once the food is cook you close the vents and is a  nice chunks of charcoal left to start the next fire. I have use it a lot and I use two bags of charcoal so far. Cheaper than my gas grill. The great advantage is that the food has this amazing flavor you can smoke, grill, bake. This grill is a great value and does as great job as the green egg for a lot less.