Its taken quite a few go's to get it right though, i have used it about 8 or 9 times now, learning each time i used it and have got it about right now

It takes about 1.5 - 2 hours to get to heat, but you can do a skewer of chicken in about 10 mins and it will take 12 skewers in one go with about a 40 minute window of optimum heat for cooking. I havent tried naans yet but i will be this weekend ;D
As you can see from the pictures, it can lose charcoal from the door at the bottom (I knew i should have used it on my decking last weekend :

)
I cant praise this enough, i faffed around for ages trying to grill it, roast it etc etc and nothing comes close to how the meat comes out.
TandooIQ themselves were great,(i have nothing to do with them) delivery was quicker than stated, the packaging was great (massive heavy 30KGs hessian box) skewers, naan tools and some clay (complete with goat hair)

The sides have been seasoned and laid on a wet base apparently and then shipped, when you get it you have to fill all the cracks in the bottom with the clay provided and leave for a couple of days, then do a couple of "pre burns" in it, and leave it to cool, then you are good to go

Looking forward to doing a whole chicken in it ;D