I bought a flat from this builder in Apr 2011, in Ekkaduthangal.
Following are the reviews:
-A very big organization mainly concentrating on hotels, so you expect to get less attention because you are a small fish for them.
-Quality: Average.
-Poor customer support, thoroughly check your apartment before taking delivery. Their quality control no so good.
-Keep visiting frequently and ask for additional power points etc, you will be surprised even fans and lights they did not install two way switches even on a luxury apartment. Site engineer will give a damn to you, be aware.
-They are into all kind of cost cutting, beware.
-Poor quality doors for rooms. Broken sanitary fittings. Watch out!
-Formalities like EB card name changing may not be done even for 3 years esp if you are residing abroad.
-They may experiment new features at your expense, be careful may be costly for you.(eg. power saving a/c compressors which never worked and huge bills and needed a expensive voltage stabilizer)
Go ahead and buy if you have great deal of experience in buying flats and you are a very smart buyer.