I bought the Tushy. It’s nothing crazy fancy, but works amazingly. It’s one piece that you install between the water line and the tank of the toilet. Very quick install. For new users, I’d suggest keeping the water pressure low (the little knob you turn to activate it) that way you’re not getting water up your butt when you’re not expecting it. It’s a weird sensation at first, but you quickly get used to it. Now I swear by having a bidet.