Melissa & Doug Sing-Along Nursery Rhymes Sound Puzzle - Wooden Peg Puzzle (8 pcs)

I'll caveat part of this by saying our 18 month old has been playing with it for 5-10 minutes, so not the most in-depth assessment.Whilst the product look like it's sturdy, so will last, we found the following two 'issues'.The noise doesn't actually activate when the piece is inserted correctly, but when it's more or less over the sensor. The has the following implications, that the animal doesn't need to be placed in position, nor does it need to be placed inside the correct position (so you get a duck going meow).As they are light sensors, our daughter has also figured our she can lie over the base and get all sorts of animal noises. Fun, but not what we were hoping for.