Aih, saya tak ada experience kat both hospitals ni, but dari dengar from friends, KPJ Ampang Puteri lebih convenient sebab dekat residential area, while KPJ Damansara lagi established and bigger. Dua-dua okay la untuk delivery, tapi really depends on mana yang dekat with you and siapa doctor yang you prefer! Mungkin boleh visit both, tanya soalan and feel the vibe, then decide, that's what I did with my hospital jugak.