Basically, this is a great toy for children. Delivering what derailed and not as fast. Also, the battery consumption is ok. But the fly in the ointment. The shelf life of the locomotive leaves much to be desired. We now have three of the engines, there really are always 1-2 locomotives in the settlement of the warranty. Although the settlement on Brio works well, but takes no less than 3 weeks (shipping costs are to be paid by ... for a defective product actually an absurdity, therefore two locomotives in one package!).