Have had this bidet toilet installed for a year. Take my advice and stay far, far away. The LED control panel is not readable. It's like pre-LCD quality. Very, very difficult to read w/ 20/20 vision. But the bigger issue is that it allows for sewage gases to enter your bathroom. I have had multiple plumbers out. I had the slab floor drilled out to have additional ventilation added. Still could smell the sewage smell. I then replaced the toilet and voila, all solved. Smell is gone. Literally thousands of $ later and it was this poorly made toilet that was the root of the problem. Don't make the same mistake and stay away from this manufacturer.