The Matilda has a "Client Relations Manager" with whom you can make an appointment to visit the maternity ward, and see the rooms for yourself. She will also give you a full Information Kit with up to date pricing. Just ring the main number and ask.
A scheduled c-section last November in Private Room ran to 50k, not including anaesthetist charges, paeditrician fees (one must be present at a c/s) and of course, your OB fees. The fee schedule from last year says that choosing a Twin Room would have reduced that to 32.5k, or the Standard Room (4 bed ward-type room) 27.5k. Note these charges are during "normal" hours and also an emergency c/s (less than 12 hours notice) is charged higher.
I found the quality of the midwifery support and general arrangements for care of me (meals, room etc.) excellent. The midwives were easily the equals of those I had met with my first child at a top maternity hospital overseas, in terms of fantastic support for breastfeeding, support for having baby room in with you etc. And even though the hospital was very busy (full) when I was there, I think the staff ratios must have been a little higher than my previous Australian experience, as there was always a midwife on hand when needed, and very quickly too.
Definitely a fan of the Matilda for a nice, term, uncomplicated birth. Shame they don't have extended facilities for Special Care of newborns, that would make them so much more attractive.