I have enjoyed my couple of cobs from them. One I replaced the bottom with a bit of briar. They are very very light, so easy to clench, although the shape of the clench is not the same, more like a clay. I will dust one off tomorrow, it has been years since I smoked one I think.
I kind of like how small diameter the bowl was because it meant I bothered to use a tamper since my little finger could not fit.
Isaac