First, the seat looks great and the bidet works just fine. Attaching the water source is easy. The attachment of the seat to the toilet is poorly designed. There is a plastic base that you attach to the toilet, then slide the seat onto the base. Should be easy, right? However, tightening the base enough so that it doesn't move every time you use the seat causes the plastic base to bow up a bit in the middle. This makes it almost impossible to slide the seat onto the base evenly. Use it a few days and it's off center again, and you have to remove the seat to tighten the screws and struggle with replacing the seat all over again. Very poorly designed.