It's a great model and I think it's marvellous. I had noticed though when I pushed it along the front axle on the tractor unit didn't turn. It wasn't until three weeks after I bought it that the front left hand wheel on the tractor unit was partly broken off and at an angle to the axle. I tried to fix it and one of the spokes broke off and was lost. I now have a five spoked wheel on one side of the tractor unit and I am looking for a piece of red plastic rod which I can cut to the required length and repair the wheel. The front axle turns fine now, though but I am keeping the model on display with the right side facing outwards until I can get the wheel repaired. I'm still very proud of this model, though.