Pros : Very unique shape, not a lot out there shaped like this and I've gotten quite a positive response.
Cons : You have to get a stiff small paintbrush to brush the cooked kilnwash off before re-priming. After several firings the texture of the mold will change otherwise.
Other Thoughts : The maintenance is easy and this mold is a creative way to use scraps, extra frit, or muirini glass!