"I bought this train for my 5 year old son. We built it together. I searched for the parts, and he assembled everything except for a few difficult parts.
The LEGO designer has done a great job with this train. It is very detailed and it has some new and exiting building techniques. The train has great resemblance with the original TGV train.
We motorized the train with one engine, and found that the traction was not good enough to reach top speed. It was also unable to run with more than the 3 original cars. In order to fix this problem we put in an extra motor in the locomotive. With to motors the we have to run it slower in the corners in order to say on the track.
Pros: Detailed train. Can easily be fitted with to motors for top speed. Cons: Need to buy two sets to get the full train. Needs to motors, but you have to figure out how to fit the second motor yourself."