For this kind of price you can try the Conrad, which is 1-2 notches above. Or even the Ritz Carlton (which offers S265 for weekends now) which is another notch above and arguably the best in Singapore except perhaps for Raffles. The Ritz Carlton standard rooms are large, the bathroom very luxurious and huge. You will be very happy there.

The only thing is that Conrad and R-Carlton are a bit off centre, but not that much. In any case, taxis are plentiful and extremely cheap.