My son received a Melissa & Doug Sound Puzzle (farm animals) for Christmas. The bright colors and large number of animal attracted my son immediately. The animal sound that occurs when he correctly places the animal in the slot kept him entertained and motivated to complete the puzzle. The large and thicker puzzle pieces make it easy for his small hands to grasp the pieces to play. The only drawback to this product is that the sensors may be too sensitive in that the puzzle will sometimes make sounds when moving the puzzle or walking by it. Overall this is a good product, high in quality and fun.