There are 5 floors in total, but I think floors 3 and above will give views. On the chart below (4th floor) green rooms are probably the best, with rooms ending *03 likely the optimum - these rooms give a view of approach to runways 14L/R or climb outs off 32L/R if the other direction is in use. Green rooms also give a good view over some western parts of the Airbus factory site.
Yellow rooms also have a good view of approaches and climb outs, however the angle means less of the Airbus factory can be seen.
Blue shaded rooms have a view of approaches or climb outs in the opposite direction and very limited views onto the factory site.
Below: view from room 303
Below: view from room 436
