this seat get point for comfort . my son would not sit on a hard seat . however , I just go to clean the cushion ring . it be FULL of AMMONIA from the urine . I can not get it out . my son have a rash on he bottom . I think it be from the disinfect cloth that I be use to wipe down the seat and potty . turn out he be get a ammonia burn ! Gadzooks ! why be the ring not impermeable to liquid ??? I be throw it away . we 'll switch to a vinyl soft toilet-mounted seat .