Though the shape is accurate, I must confess I don't really like the colours and textures. Still the model is a nice one, and definitely worth the download if you know your way around the material editor to change colours a bit.
A very nice touch is the landing leg, and different meshes for the warp engines in 'up' and 'down' positions. Just load the mesh and merge the files you want. The thumbnail has the engines in the 'up' position.