'When Nature Calls' to use human urine for watering plants

This urinal waters plants with human waste. They claim this will make "Users will feel as if they are watering the plants rather than urinating in a public area. This will have a psychological impact on people and force them to think in a positive manner." I am disgusted by this idea and do not see a huge difference in impact on the environment but it does have potential to change our perceptions about human waste and ways to use it instead of just disposal.