Hey i also went for interview with iHiS but will be posted to NUHS. Interview was also 1 round with 2 persons Mr. Fang and Ms Toh.

My thought is that being station at NUHS is not to bad since u get the intermix with the actual NUHS team which isnt that bad but can be quite demanding at times (According to the interviewers )

I rejected their offer in the end though.

Good Luck!