Well constructed (my son has even climbed on it).  Great height, great space.  we liked the green background vs it already painting a picture of how the train should be.  Some kids may think that's the only setup it can have and didn't want to constrict their creativity or frustrate them - need to think about how your kids would take that.  mine would have to follow it - so plain background is better in my book.  
we really like it - large enough too to build different track setups.
great purchase!!!