Great unit. Used it to upgrade the master bath in a high-end home. All we had to add was an electrical box behind it to power the unit. This thing does everything. When you sit down it rinses the tank. When you stand up, it self flushes. The baday has tempature regulated water and a heated seat operated by the remote controll. The remote also controls the heated air dryer. There is also a night light in the bowl area. You can flush it when standing by waving your right foot in front of the base of the toilet.