I haven't stayed there but did check it out from the beach, it looked good and a good location. It's only a few mins from Mahabalipuram and it's Shore Temple and other sights. It's a long way out of Chennai though so it's not really suitable for a base to visit there. But a few days there on the beach with a trip to Mahabalipuram and maybe Pondicherry would definitely beat staying in Chennai itself.
I'm considering a future stay there so please do report back if you stay there!