My 13 year old son is a fan of train. We bought a first circuit Mehano there 4 years, broke down after a few months. We bought a box and rails there are two weeks, the transformer does not work anymore after 2 uses ...... Unable to redeem spare part (or prohibitively expensive, 38). Fed up, the value for money was disastrous. The rails are no longer compatible, fasteners break easily, plastics in cars are super fragile.