Processing:
The trains are great processed (Marklin typical), very stable and easy to handle. Batteries included-a clear advantage.
The rails are very robust-but sew together difficult for smaller children. Some of the edges are a little sharp.
Fun:
We have built and tried to sample everything: the features of the train (horn, light, message) are great and are just fun (and adults :-)
Summary:
For the price for us an absolute top product with a lot of fun ... We will definitely continue to buy parts and build the railway.