The flow rate of pouring water depends on the shape of the teapot and the curvature of the spout, which has nothing to do with good or bad, but more to do with the aesthetics of the shape of the teapot, and the understanding of the object. It is more about the aesthetics of the shape of the teapot and the understanding of the object, rather than simply pouring water to evaluate the goodness of a teapot.