Haiyaa I haven't delivered at FPP Sg Buloh myself, but a few of my mum friends did and they said the experience was quite good overall, the staff were attentive and the facilities decent lah. From what I gather, you should register as early as possible (like before 20 weeks ideally) because slots do fill up, especially for popular months, and yes the deposit was around that range when they did it but best you call them directly to confirm the current amount since things do change. Good luck with your pregnancy!