The sink basins are so flat that the water funnels into the drain very slowly. The sink will start to fill up even if the drain is all the way open as a result of this. Terrible, terrible design. Also the left sink on mine is not level and because it is so flat water pools on the left side of the basin and never reaches the drain hole. The countertop itself looks very nice when brand new but the black acrylic shows water spots like mad and is almost impossible to get entirely clean. Would NOT buy again.