The processing is good in itself, is of course, clay and glazed, but it looks quite stable. So far, nothing happens.
In itself, on the setup you should try around a bit, with too much tobacco, the tobacco is below not really hot in the head because the head is quite deep. What super with me running:
1. tobacco purely up over the hole
2. Slightly loosen with a needle and a little distance from the hole in the middle hold, should halt loose drinliegen
3. Four layers of aluminum foil over it, and round holes 3 Cocobricos
4. If anrauchen, take down and if needed it again with windbreak.
Runs great with me!