The lights on all of the cars do activate. The transformer does power the train, but as mentioned, I was not able to activate the horn.
I'm not sure where that failure lies. All track are present and no connectors are broken. One track does show a small burned area as seen in the photos. The box is partially covered in clear packing tape and does have a small amount of rips and crumples as seen in the photos. I believe I've priced the set fairly given the overall condition.
Please ask questions before purchasing.