I don't have any personal experience with it. The flushing videos at the AS web site are impressive, as is the new rim-wash boosting technology. It's the first dual-flush design I have seen with a direct fed jet. Typical dual-flush designs are washdown and have a rather small waterspot. MaP testing shows it will flush 1000 grams in the full flush mode. With the lax quality control, the usual cautions that apply to all AS products should be followed. Find a dealer that will allow you to sort through bowls and tanks until you find ones you are satisfied with. Check that the bottom of the bowl is flat, the rim is level, and all the rim holes are clear, and check all over for glazing defects.