Interesting chair; not something that would see a lot of use in my images; but still quite nice looking!

The texture "off centeredness", can be cured by adjusting the appropriate offset parameter in the "image_Map" node.

If you suspect that the Firefly render engine is the cause of the deforming of the cushions; that can be cured by deselecting "Smooth Polygons" in the chair's parameter tab.

Uhh...; what was the question?  Oh yeah, nice looking chair!

(: