Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Wow this set is pretty awesome! You've got 2 tall slides, a merry-go-round, a ferris wheel, ice-cream parlour, a small train, even a toilet! There's also a camera, a height chart, balloons, and 2 adults plus 3 kids. Even the adult in me is so thrilled with this set, I envy my kid for having this to play with!