I take issue with the 20-minute benchmark for installing a Tushy, but I love the result. I spent the first half hour finding a wrench to loosen the water supply hose from the toilet and removing the slow-close seat & lid. Attaching the Tushy took just a few minutes. Putting the seat back on top of the Tushy took hours. The slow-close alignment went on strike for a good long time, but YouTube videos got us back. Then I realized that I'd have to move the seat forward to give the nozzle room to operate. (Seat off, reposition the Tushy, seat back on. RECOMMENDATION: tape the Tushy into place so it doesn't wiggle out of the exact position you want. All that said, I love the result and am proud I did it myself. ALSO - The wonderful poop puns on the packaging, and the humor throughout the installation guide and videos kept me encouraged. Thanks, Tushy!