IMO, trust me, you don't want to stay there, they are very old, they renovated a few but left the rest in conditions that i personally find .....
But that is my personal opinion. You better be prepared to move if you are staying there. And its not cheap either. One of the best
Service Apartment in Singapore i feel is the very unknown lotus at joo chiat, its a secret for many business travellers.
I do not have business there and no relationship with the establishment. I find the newly renovated (from pre-war colonial style) house full of charm just like its staff.