We've had a smokey joe - little kettle - for a year or so.
Bottom line - never gets hot enough.
I've tried natural charcoal in the chimney, match light kingsford - what looks about right, what looks like not enough, what looks like too much - vents open, closed, etc..
With the coals all white I can still hold my hand right over the grate for at least 5 seconds, maybe longer. It took 15 minutes to get 3 rib eyes to medium rare.
I'm guessing It's getting to 200F or so, I'd prefer 400F+...
Never any flare ups, though
I usually start with a pyramid of charcoal in the center and spread it out after they are ready. About the only thing I have not tried is to push it all to one side to start.
Maybe I just need the bigger Jumbo Joe. I really just want an American made portable grill that works...