I don't have personal experience with Dr Choo Wan Ting specifically, but a friend of mine delivered at TMC and went to Adelina Women's Clinic, and she said the care was attentive and she felt comfortable throughout her pregnancy. That said, I'd also suggest checking the clinic's availability and call to get a feel for how responsive they are before committing, since a good rapport with your gyne really matters for the long haul. It might also be worth asking in the TMC mummies Facebook group as there tend to be more specific reviews there lah.