I ordered this for my 4+ year old granddaughter and have received two kits so far. This box is amazing! My only issue is that it is far too mature for my just-four-year-old. However, it may be possible to adapt them to a younger child. I haven't cancelled, so I plan to use whatever I can and set aside the rest for a year or two when she is more ready. Makes a wonderful gift!
I love that my son looks forward to the Surprise every month and when he gets it he goes thru it all and reads the little facts. The best part is that I hear him telling his grandparents and friends about the adventure he found in 'a box'!