Installation was quick and easy. The filling is very quiet: the toilet being next to our room, we wanted much to it. Many tricks facilitating assembly, including the filling valve, and for once, correct gasket supplied for installation (fiber red instead of black rubber, which tends to cut when the faucet is used too). I have not tested the quality of the plastic, but who used to meet the flushing mechanisms stuck by limestone, I got used to oil (very slightly, I do it with a bomb and I wipe the surplus after) plastic to prevent lime deposits. It works well.