I purchased this in July of 2011, used it about four times, and the reservoir gasket and the ring that holds it in place fell out. I tried to push it in and use it that way, but since the top screws off, it would not stay in place. Before I could contact the vendor, I had to go out of the country.
After I got back, I contacted the vendor (Kasbahouse) earlier this year, and on February 7 they offered to send me a "new filter and ring." I said fine, let's try it. Nothing arrived. I wrote them again on February 28, asking if it had ever been sent, and they responded that it should have been sent and said they would send me a tracking number. I received neither parts nor tracking number. I wrote them on March 12, telling them I had not received either a filter and ring or a tracking number. I have had no response.
In the first response, the vendor said "If you tighten the pot too much, the ring can stick to the bottom when you unscrew it." Frankly, this sounds like a design problem to me, as one obviously has to tighten the pot enough to seal the steam flow. So if the vendor is right, IMHO this is a pot that has a design flaw and should be avoided, as should this vendor.