The Shangri-La was basically downtown (as if all of Singapore isn't downtown?)...not on Sentona, as I recall. Got a tour with the business associate, and went by Raffles, but I'd think we saw the "old place", since this was about 15 years ago.
Wifey and I both would go back in a minute, but would have to psych ourselves up for that equatorial humidity.....that's the only place in the world I've seen the windows sweat 24/7.