My 2 year old son took this train for Christmas. He immediately played with: the rails are easy to assemble even at this age, the engine is easy to start. Only stopped by pressing the button while the train is running is not within the reach of a child of that age. The sounds are realistic and not too strong. My son loves to refuel and hear the glug glug ... And it's sturdy, beautiful quality of manufacture, Duplo what ...