What are you most proud of? That the idea came together so easily. My son Maddux loves it and there are no corners or edges to worry about. the top is stuffed with the extra bumper pieces so its soft to sit on. What advice would you give someone starting this project? Just start the bumper in a back corner so you can end there with a clean finish. You could add a hinge and an arm to keep the top open. My son just takes it off and sits on it.