I have now staying in many 5 star hotels in Chennai. The Westin is by far the cleanest and well maintained hotel that I have slept in. ( although saying that the other hotels have been rather shabby and run down)
The photos are of the suites on the ninth floor, a nice free upgrade on my first visit. there was even a towel monkey waiting for me in my room.
It has a very western feeling to the hotel with many American guests. the Gym and pool are great, clean and not a sign of damage to any of the equipment.