A great little grill! Though I grew up with weber, kettle type grills, and even tried a trash-picked gas grill, I have never used a grill that cooks so consistently well.
I use mine with hardwood charcoal -- this gets the temperature hot, fast. As soon as the charcoal is lit up I spread the coals outward, drop the grill on top (on the high side of the legs), and let it warm up for a couple minutes. Once the cast iron is warmed up the heat radiates evenly across the cooking surface. To check the temp, I hold my hand 4 inches over the top of the grill -- if I can hold it there for more than a couple seconds, it is not hot enough. Without adding charcoal, I usually have just enough time to do two batches on the grill.
For steak, I leave the meat on for four minutes each side. When I pull it off, it has a nice crispy crust, and a perfect pink inside. When I cook burgers, I leave them on five minutes each side. And, chicken, I'll take a boneless, skinless chicken breast and pound it flat with a fry pan before tossing it onto the grill (this prevents the common problem of dry on the thin end and too pink on the thick end). Four minutes each side, and when the milky juice flows out when pricked with a fork, you know that it is perfect and juicy. I cook fish in a similar fashion. A little flavor tip: Some coarse kosher salt and fresh ground black pepper added to your meat before cooking is usually all you need to have excellent results.
Now, for roasting or smoking, this is not the product for you. Since there is not a lid it would be impossible to cook a whole chicken, for instance. Buy a weber for that. But a weber will never acheive the kind of perfect steaks and burgers that you get from one of these.
We have had our grill for three years now. It has lived outide our home the entire time in all kinds of weather - rain, snow, ice, or sun. And I was grilling in all conditions. I have performed absolutely no maintenance -- never oiled it, never cleaned the ashes. It seams perfectly happy in this state of useful neglect.
If you want a great charcoal grill, this is what you want.