Val,
I bought 2 of the Vessels and they do work pretty good. I don't like the fact that you can't see whats going on inside them like you can with a glass carboy. The first time I opened the bottom drain from the start and the sediment wouldn't drop down into the bulb at the bottom it just backed up right above it. When I made another batch I waited to open the valvejust after the first fermentation was almost done. The sediment was so thick at the bottom of the vessel it wouldn't drop down into the bulb. On my last batch of wine I opened the valve up after a few days and there wasa good amount of sediment and it dropped down good. I've done 4 batches so far and I do like the idea and I will keep trying to get the kinks out.