For the correct use of the children need the help of adults initially, especially when it comes to the lock or vortex generation, but it should also be understood that you do not let the children from the start alone with such a game? If you get the hang of it, everything works quite well and the children often play and very happy with it. We have additional boats of the old railway, which are very useful when several children play. Well, I think that this track you can expand when needed and also can buy spare parts to it.
Not to be underestimated is the size. Although I have read the dimensions before you buy, however, was a little surprised that the water ride is so viwl larger than the old. Since we have a garden, the space is not a problem. If you want to build the path to a balcony / terrace, should be the size of look before accurate.
From me full credit for a good toy, the children in the summer safely every day can have a lot of fun.