You have to pay attention to the setup and nciht simply cut Selbstanzünder a location Alu at the stones already ...
My setup was a China Head with 4 layers of aluminum spacing setup of 1cm and then another 4 layers aluminum. Both, of course, with "Schneckenlochung". Dadrüber then came 3 Coco Bricos.
Important therefore is the distance the stones should not gotten too much heat otherwise it is a Eckligen / strong deceleration in taste.
Smoke 10/10 I really do not know how to top that.
Taste: 9/10 Taste really great but you have to stop standing on Ice candy;)
Duration: 10/10 We have good 1.5h smoked on the head and having great taste and good smoke.
What is even more positive you can draw really long and strong and has no similar bit scratchy throat
So who is still skeptical just try it. Price performance is great, I think from 250g you get about 5-8 heads.